{"id":21065,"date":"2025-07-13T13:28:36","date_gmt":"2025-07-13T07:58:36","guid":{"rendered":"https:\/\/agriculturereview.com\/?p=21065"},"modified":"2025-07-13T13:42:38","modified_gmt":"2025-07-13T08:12:38","slug":"soil-science-practice-test","status":"publish","type":"post","link":"https:\/\/agriculturereview.com\/hi\/soil-science-practice-test\/","title":{"rendered":"\u0915\u0943\u0937\u093f \u092a\u0930\u0940\u0915\u094d\u0937\u093e\u0913\u0902 \u0915\u0947 \u0932\u093f\u090f \u092e\u0943\u0926\u093e \u0935\u093f\u091c\u094d\u091e\u093e\u0928 \u092a\u094d\u0930\u0948\u0915\u094d\u091f\u093f\u0938 \u091f\u0947\u0938\u094d\u091f"},"content":{"rendered":"\n<p>Hey students, preparing for your upcoming <a href=\"https:\/\/agriculturereview.com\/prc-licensure-exam-animal-science-reviewer\/\" target=\"_blank\" data-type=\"post\" data-id=\"20810\" rel=\"noreferrer noopener\">agriculture examinations<\/a> but confused about whether your preparation is going well or not? Well, no more! At Agriculture Review, we keep updating new test series based on previous years\u2019 questions of the PRC Licensure Examination for Agriculturists.<\/p>\n\n\n\n<p>In this test, you have to attempt 100 questions from the Soil Science subject. Attempting all questions is necessary to identify your strengths and weaknesses. After completing the test, you can take a screenshot of your result for future reference and compare it with past performances. To stay updated with regular test series, click on the bell icon at the bottom left corner of the screen.<\/p>\n\n\n\n<p>You can also join our Facebook Broadcast Channel, where we regularly share newly updated questions. All the best for today\u2014I hope you become a registered Agriculturist soon!<\/p>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns21065_63b108-8b{gap:var(--global-kb-gap-xs, 0.5rem );justify-content:center;align-items:center;}.kt-btns21065_63b108-8b .kt-button{font-weight:normal;font-style:normal;}.kt-btns21065_63b108-8b .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns21065_63b108-8b .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns21065_63b108-8b .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns21065_63b108-8b .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns21065_63b108-8b .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns21065_63b108-8b .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns21065_63b108-8b .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns21065_63b108-8b\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn21065_d1c817-bf.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn21065_d1c817-bf.kb-button{border-top-left-radius:50px;border-top-right-radius:50px;border-bottom-right-radius:50px;border-bottom-left-radius:50px;}<\/style><a class=\"kb-button kt-button button kb-btn21065_d1c817-bf kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-fill  kt-btn-has-text-true kt-btn-has-svg-false  wp-block-kadence-singlebtn\" href=\"https:\/\/www.messenger.com\/channel\/reviewagriculture\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"kt-btn-inner-text\"><strong>JOIN BROADCAST CHANNEL<\/strong><\/span><\/a><\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>Soil Science Practice Test<\/title>\n    <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.0.0-beta3\/css\/all.min.css\">\n    <style>\n        .quiz-container {\n            background-color: #fff;\n            margin: 50px auto;\n            padding: 20px;\n            border-radius: 5px;\n            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);\n            width: 100%;\n            max-width: 600px;\n        }\n        .quiz-header {\n            text-align: center;\n            margin-bottom: 20px;\n        }\n        .quiz-question {\n            margin-bottom: 20px;\n            padding: 15px;\n            background-color: #f9f9f9;\n            border-radius: 5px;\n        }\n        .quiz-question p {\n            margin: 0;\n            font-size: 16px;\n            font-weight: bold;\n        }\n        .quiz-options {\n            list-style-type: none;\n            padding: 0;\n            margin-top: 10px;\n        }\n        .quiz-options li {\n            margin-bottom: 10px;\n        }\n        .quiz-options label {\n            display: inline-block;\n            cursor: pointer;\n        }\n        .quiz-button {\n            background-color: #4CAF50;\n            color: white;\n            padding: 10px 20px;\n            border: none;\n            border-radius: 5px;\n            cursor: pointer;\n            margin-top: 20px;\n            display: block;\n            margin-left: auto;\n            margin-right: auto;\n        }\n        .quiz-button:hover {\n            background-color: #45a049;\n        }\n        .result-container {\n            margin-top: 20px;\n            padding: 20px;\n            border-radius: 5px;\n            background-color: #fff;\n            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);\n            display: none;\n        }\n        .result-header {\n            text-align: center;\n            margin-bottom: 20px;\n        }\n        .result-score {\n            font-size: 20px;\n            font-weight: bold;\n            text-align: center;\n            margin-bottom: 20px;\n        }\n        .result-share {\n            text-align: center;\n            margin-top: 20px;\n        }\n        .share-buttons {\n            display: flex;\n            justify-content: center;\n        }\n        .share-buttons a {\n            text-decoration: none;\n            padding: 15px;\n            border-radius: 50%; \/* Make buttons circular *\/\n            color: white;\n            margin: 0 5px;\n            font-size: 24px; \/* Increased font size for icons *\/\n            width: 50px; \/* Set fixed width *\/\n            height: 50px; \/* Set fixed height *\/\n            display: flex; \/* Use flexbox to center icon *\/\n            align-items: center; \/* Center vertically *\/\n            justify-content: center; \/* Center horizontally *\/\n            transition: background-color 0.3s; \/* Transition effect for hover *\/\n        }\n        .share-facebook {\n            background-color: #3b5998;\n        }\n        .share-whatsapp {\n            background-color: #25D366;\n        }\n        .share-link {\n            background-color: #555; \/* Darker color for link sharing *\/\n        }\n        .share-buttons a:hover {\n            opacity: 0.8; \/* Slightly transparent on hover *\/\n        }\n        .result {\n            margin-bottom: 10px;\n            padding: 10px;\n            border-radius: 5px;\n        }\n        .correct {\n            background-color: #d4edda;\n            color: #155724;\n        }\n        .incorrect {\n            background-color: #f8d7da;\n            color: #721c24;\n        }\n        .correct-answer {\n            font-weight: normal;\n        }\n        \/* Media query for mobile view *\/\n        @media (max-width: 768px) {\n            .quiz-container {\n                width: 100%;\n                padding: 10px;\n            }\n        }\n    <\/style>\n<\/head>\n<body>\n\n<div class=\"quiz-container\">\n    <div class=\"quiz-header\">\n        <h2>Crop Science Practice Test<\/h2>\n    <\/div>\n    <form id=\"quiz-form\">\n<!-- Question 1 -->\n<div class=\"quiz-question\">\n    <p>1. In the USDA soil taxonomy, which diagnostic surface horizon is characterized by high organic matter and forms under wetland conditions?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q1\" value=\"A\"> a) Mollic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q1\" value=\"B\"> b) Histic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q1\" value=\"C\"> c) Umbric<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q1\" value=\"D\"> d) Ochric<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 2 -->\n<div class=\"quiz-question\">\n    <p>2. Which soil-forming process is responsible for the downward movement of silicate clay, iron, or organic matter from the upper to lower horizons?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q2\" value=\"A\"> a) Eluviation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q2\" value=\"B\"> b) Illuviation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q2\" value=\"C\"> c) Podzolization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q2\" value=\"D\"> d) Laterization<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 3 -->\n<div class=\"quiz-question\">\n    <p>3. Which horizon is commonly used as a diagnostic subsurface horizon in Alfisols?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q3\" value=\"A\"> a) Kandic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q3\" value=\"B\"> b) Argillic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q3\" value=\"C\"> c) Cambic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q3\" value=\"D\"> d) Spodic<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 4 -->\n<div class=\"quiz-question\">\n    <p>4. What is the primary mineral form of phosphorus in weathered tropical soils like those in the Philippines?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q4\" value=\"A\"> a) Apatite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q4\" value=\"B\"> b) Struvite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q4\" value=\"C\"> c) Variscite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q4\" value=\"D\"> d) Brushite<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 5 -->\n<div class=\"quiz-question\">\n    <p>5. Which laboratory method is commonly used in the Philippines to determine soil texture by particle size analysis?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q5\" value=\"A\"> a) Feel method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q5\" value=\"B\"> b) Hydrometer method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q5\" value=\"C\"> c) Pipette method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q5\" value=\"D\"> d) Percolation method<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 6 -->\n<div class=\"quiz-question\">\n    <p>6. What is the key distinguishing feature of Ultisols in the USDA soil taxonomy?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q6\" value=\"A\"> a) High base saturation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q6\" value=\"B\"> b) Presence of a mollic epipedon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q6\" value=\"C\"> c) Low base saturation &#038; argillic horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q6\" value=\"D\"> d) Accumulation of organic matter<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 7 -->\n<div class=\"quiz-question\">\n    <p>7. Which soil property is directly measured to determine lime requirement?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q7\" value=\"A\"> a) Base saturation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q7\" value=\"B\"> b) Electrical conductivity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q7\" value=\"C\"> c) Soil pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q7\" value=\"D\"> d) Buffer pH<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 8 -->\n<div class=\"quiz-question\">\n    <p>8. What does the term \u201csoil colloids\u201d primarily refer to?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q8\" value=\"A\"> a) Organic matter and sand particles<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q8\" value=\"B\"> b) Crystalline and amorphous clay particles<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q8\" value=\"C\"> c) Decomposed litter and humus<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q8\" value=\"D\"> d) Silt and weathered rocks<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 9 -->\n<div class=\"quiz-question\">\n    <p>9. Which of the following best describes the term \u201cCEC\u201d in soil chemistry?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q9\" value=\"A\"> a) Capacity to retain base-forming ions<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q9\" value=\"B\"> b) Soil\u2019s ability to absorb organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q9\" value=\"C\"> c) Total exchangeable cations per kg of soil<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q9\" value=\"D\"> d) Ability of soil to supply water to plants<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 10 -->\n<div class=\"quiz-question\">\n    <p>10. Which form of potassium is directly available for plant uptake?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q10\" value=\"A\"> a) Structural K<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q10\" value=\"B\"> b) Exchangeable K<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q10\" value=\"C\"> c) Non-exchangeable K<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q10\" value=\"D\"> d) Lattice K<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 11 -->\n<div class=\"quiz-question\">\n    <p>11. What is the ideal soil pH range for most agricultural crops?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q11\" value=\"A\"> a) 4.0 to 5.0<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q11\" value=\"B\"> b) 5.5 to 7.0<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q11\" value=\"C\"> c) 7.5 to 8.5<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q11\" value=\"D\"> d) Above 8.5<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 12 -->\n<div class=\"quiz-question\">\n    <p>12. In a soil profile, which horizon is typically enriched with leached materials?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q12\" value=\"A\"> a) A-horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q12\" value=\"B\"> b) E-horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q12\" value=\"C\"> c) B-horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q12\" value=\"D\"> d) C-horizon<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 13 -->\n<div class=\"quiz-question\">\n    <p>13. Which factor is considered passive in Jenny\u2019s equation of soil formation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q13\" value=\"A\"> a) Climate<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q13\" value=\"B\"> b) Topography<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q13\" value=\"C\"> c) Parent material<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q13\" value=\"D\"> d) Organisms<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 14 -->\n<div class=\"quiz-question\">\n    <p>14. Which Philippine soil series is classified under Vertisols and known for its shrink-swell capacity?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q14\" value=\"A\"> a) Luisiana series<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q14\" value=\"B\"> b) San Manuel series<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q14\" value=\"C\"> c) Guimbalaon series<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q14\" value=\"D\"> d) Catbalogan series<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 15 -->\n<div class=\"quiz-question\">\n    <p>15. What form of nitrogen is produced first during the process of mineralization of organic matter?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q15\" value=\"A\"> a) Ammonium (NH\u2084\u207a)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q15\" value=\"B\"> b) Nitrate (NO\u2083\u207b)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q15\" value=\"C\"> c) Nitrogen gas (N\u2082)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q15\" value=\"D\"> d) Nitrite (NO\u2082\u207b)<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 16 -->\n<div class=\"quiz-question\">\n    <p>16. What is the effect of excessive sodium on soil structure?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q16\" value=\"A\"> a) Improves permeability<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q16\" value=\"B\"> b) Causes dispersion and poor structure<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q16\" value=\"C\"> c) Increases microbial activity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q16\" value=\"D\"> d) Enhances flocculation<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 17 -->\n<div class=\"quiz-question\">\n    <p>17. What is the role of gypsum in reclaiming sodic soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q17\" value=\"A\"> a) Adds potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q17\" value=\"B\"> b) Provides magnesium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q17\" value=\"C\"> c) Supplies calcium for ion exchange<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q17\" value=\"D\"> d) Reduces organic matter<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 18 -->\n<div class=\"quiz-question\">\n    <p>18. Which enzyme is commonly used as a biological indicator of soil health?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q18\" value=\"A\"> a) Catalase<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q18\" value=\"B\"> b) Dehydrogenase<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q18\" value=\"C\"> c) Phytase<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q18\" value=\"D\"> d) Nuclease<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 19 -->\n<div class=\"quiz-question\">\n    <p>19. Which of the following nutrients is most likely to become unavailable in alkaline soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q19\" value=\"A\"> a) Sulfur<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q19\" value=\"B\"> b) Manganese<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q19\" value=\"C\"> c) Calcium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q19\" value=\"D\"> d) Magnesium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 20 -->\n<div class=\"quiz-question\">\n    <p>20. What is the main reason for the red and yellow color in tropical soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q20\" value=\"A\"> a) High clay content<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q20\" value=\"B\"> b) Organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q20\" value=\"C\"> c) Iron oxides like hematite and goethite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q20\" value=\"D\"> d) Manganese and aluminum hydroxides<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 21 -->\n<div class=\"quiz-question\">\n    <p>21. In the hydrometer method of soil texture analysis, what does the reading at 40 seconds represent?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q21\" value=\"A\"> a) Total solids in suspension<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q21\" value=\"B\"> b) Silt and clay content<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q21\" value=\"C\"> c) Sand content<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q21\" value=\"D\"> d) Clay only<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 22 -->\n<div class=\"quiz-question\">\n    <p>22. What is the primary difference between entisols and inceptisols?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q22\" value=\"A\"> a) Presence of organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q22\" value=\"B\"> b) Degree of horizon development<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q22\" value=\"C\"> c) Soil texture class<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q22\" value=\"D\"> d) Water-holding capacity<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 23 -->\n<div class=\"quiz-question\">\n    <p>23. Which of the following has the highest cation exchange capacity (CEC)?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q23\" value=\"A\"> a) Kaolinite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q23\" value=\"B\"> b) Vermiculite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q23\" value=\"C\"> c) Illite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q23\" value=\"D\"> d) Organic matter<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 24 -->\n<div class=\"quiz-question\">\n    <p>24. What is the main function of mycorrhizae in soil?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q24\" value=\"A\"> a) Fix atmospheric nitrogen<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q24\" value=\"B\"> b) Enhance phosphorus uptake<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q24\" value=\"C\"> c) Decompose organic residues<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q24\" value=\"D\"> d) Regulate soil temperature<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 25 -->\n<div class=\"quiz-question\">\n    <p>25. Which Philippine agency is responsible for issuing official soil survey reports?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q25\" value=\"A\"> a) DA-BAR<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q25\" value=\"B\"> b) FPA<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q25\" value=\"C\"> c) BSWM<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q25\" value=\"D\"> d) PCAARD<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 26 -->\n<div class=\"quiz-question\">\n    <p>26. What is the function of iron oxides in tropical soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q26\" value=\"A\"> a) Source of primary nutrients<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q26\" value=\"B\"> b) Enhances clay activity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q26\" value=\"C\"> c) Imparts color and acts as a phosphorus fixer<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q26\" value=\"D\"> d) Improves CEC<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 27 -->\n<div class=\"quiz-question\">\n    <p>27. In acid sulfate soils, which toxic compound is commonly produced under oxidation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q27\" value=\"A\"> a) Hydrogen cyanide<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q27\" value=\"B\"> b) Sulfur dioxide<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q27\" value=\"C\"> c) Sulfuric acid<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q27\" value=\"D\"> d) Iron phosphate<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 28 -->\n<div class=\"quiz-question\">\n    <p>28. What does a high SAR (Sodium Adsorption Ratio) value indicate in irrigation water?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q28\" value=\"A\"> a) High magnesium hazard<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q28\" value=\"B\"> b) Risk of salinization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q28\" value=\"C\"> c) Poor nitrogen availability<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q28\" value=\"D\"> d) Sodicity hazard<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 29 -->\n<div class=\"quiz-question\">\n    <p>29. What does the term \u201cpF value\u201d in soil moisture studies refer to?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q29\" value=\"A\"> a) pH of soil solution<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q29\" value=\"B\"> b) Water holding capacity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q29\" value=\"C\"> c) Logarithmic value of soil water tension<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q29\" value=\"D\"> d) Soil porosity factor<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 30 -->\n<div class=\"quiz-question\">\n    <p>30. Which form of phosphorus is considered most available to plants?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q30\" value=\"A\"> a) HPO\u2084\u00b2\u207b and H\u2082PO\u2084\u207b<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q30\" value=\"B\"> b) Organic phosphorus<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q30\" value=\"C\"> c) Apatite-bound P<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q30\" value=\"D\"> d) Insoluble aluminum phosphates<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 31 -->\n<div class=\"quiz-question\">\n    <p>31. What is the process by which soluble salts accumulate in the soil profile due to poor drainage?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q31\" value=\"A\"> a) Leaching<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q31\" value=\"B\"> b) Capillarity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q31\" value=\"C\"> c) Salinization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q31\" value=\"D\"> d) Laterization<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 32 -->\n<div class=\"quiz-question\">\n    <p>32. Which soil order is characterized by volcanic ash and is common in highland regions of the Philippines?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q32\" value=\"A\"> a) Histosols<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q32\" value=\"B\"> b) Ultisols<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q32\" value=\"C\"> c) Andisols<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q32\" value=\"D\"> d) Vertisols<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 33 -->\n<div class=\"quiz-question\">\n    <p>33. What is the term for the natural arrangement of soil particles into aggregates?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q33\" value=\"A\"> a) Soil profile<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q33\" value=\"B\"> b) Soil texture<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q33\" value=\"C\"> c) Soil structure<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q33\" value=\"D\"> d) Soil consistency<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 34 -->\n<div class=\"quiz-question\">\n    <p>34. What is the diagnostic horizon of a spodic soil?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q34\" value=\"A\"> a) Argillic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q34\" value=\"B\"> b) Cambic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q34\" value=\"C\"> c) Mollic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q34\" value=\"D\"> d) Spodic<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 35 -->\n<div class=\"quiz-question\">\n    <p>35. Which nutrient deficiency is indicated by interveinal chlorosis in young leaves?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q35\" value=\"A\"> a) Phosphorus<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q35\" value=\"B\"> b) Iron<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q35\" value=\"C\"> c) Potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q35\" value=\"D\"> d) Nitrogen<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 36 -->\n<div class=\"quiz-question\">\n    <p>36. Which soil amendment is commonly used to reclaim sodic soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q36\" value=\"A\"> a) Urea<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q36\" value=\"B\"> b) Gypsum<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q36\" value=\"C\"> c) Dolomite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q36\" value=\"D\"> d) Lime<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 37 -->\n<div class=\"quiz-question\">\n    <p>37. What is the most common method of measuring soil bulk density in the field?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q37\" value=\"A\"> a) Pycnometer method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q37\" value=\"B\"> b) Clod method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q37\" value=\"C\"> c) Core method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q37\" value=\"D\"> d) Neutron probe<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 38 -->\n<div class=\"quiz-question\">\n    <p>38. What is the term for the water held tightly by soil particles and unavailable to plants?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q38\" value=\"A\"> a) Capillary water<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q38\" value=\"B\"> b) Gravitational water<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q38\" value=\"C\"> c) Hygroscopic water<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q38\" value=\"D\"> d) Field capacity water<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 39 -->\n<div class=\"quiz-question\">\n    <p>39. Which diagnostic horizon is characterized by high organic matter and base saturation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q39\" value=\"A\"> a) Ochric<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q39\" value=\"B\"> b) Umbric<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q39\" value=\"C\"> c) Mollic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q39\" value=\"D\"> d) Albic<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 40 -->\n<div class=\"quiz-question\">\n    <p>40. What is the buffering capacity of a soil primarily influenced by?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q40\" value=\"A\"> a) Soil moisture<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q40\" value=\"B\"> b) Cation exchange capacity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q40\" value=\"C\"> c) Texture<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q40\" value=\"D\"> d) Soil temperature<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 41 -->\n<div class=\"quiz-question\">\n    <p>41. Which soil horizon is primarily responsible for leaching in the soil profile?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q41\" value=\"A\"> a) O horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q41\" value=\"B\"> b) A horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q41\" value=\"C\"> c) E horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q41\" value=\"D\"> d) B horizon<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 42 -->\n<div class=\"quiz-question\">\n    <p>42. What does the term \u201csoil consistency\u201d refer to?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q42\" value=\"A\"> a) Soil fertility status<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q42\" value=\"B\"> b) Resistance to deformation or rupture<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q42\" value=\"C\"> c) Texture of soil particles<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q42\" value=\"D\"> d) Rate of infiltration<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 43 -->\n<div class=\"quiz-question\">\n    <p>43. What is the typical pH range for most agricultural crops to thrive?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q43\" value=\"A\"> a) 3.5 to 4.5<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q43\" value=\"B\"> b) 5.0 to 6.0<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q43\" value=\"C\"> c) 6.0 to 7.5<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q43\" value=\"D\"> d) 7.5 to 8.5<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 44 -->\n<div class=\"quiz-question\">\n    <p>44. Which method is commonly used to determine available phosphorus in acidic soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q44\" value=\"A\"> a) Bray-1 method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q44\" value=\"B\"> b) Olsen method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q44\" value=\"C\"> c) Ammonium acetate extraction<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q44\" value=\"D\"> d) DTPA method<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 45 -->\n<div class=\"quiz-question\">\n    <p>45. What does a high base saturation in soil indicate?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q45\" value=\"A\"> a) Low fertility<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q45\" value=\"B\"> b) Low pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q45\" value=\"C\"> c) High aluminum toxicity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q45\" value=\"D\"> d) High fertility and better pH<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 46 -->\n<div class=\"quiz-question\">\n    <p>46. Which of the following processes is responsible for the development of laterite soils in the tropics?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q46\" value=\"A\"> a) Gleization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q46\" value=\"B\"> b) Calcification<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q46\" value=\"C\"> c) Laterization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q46\" value=\"D\"> d) Podzolization<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 47 -->\n<div class=\"quiz-question\">\n    <p>47. Which of the following is NOT a primary mineral found in soil?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q47\" value=\"A\"> a) Quartz<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q47\" value=\"B\"> b) Feldspar<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q47\" value=\"C\"> c) Kaolinite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q47\" value=\"D\"> d) Mica<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 48 -->\n<div class=\"quiz-question\">\n    <p>48. What is the main cause of acidification in agricultural soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q48\" value=\"A\"> a) Phosphate fertilizer application<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q48\" value=\"B\"> b) Continuous use of ammonium-based fertilizers<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q48\" value=\"C\"> c) High rainfall and leaching<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q48\" value=\"D\"> d) Manure addition<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 49 -->\n<div class=\"quiz-question\">\n    <p>49. What is the typical color of soils rich in organic matter?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q49\" value=\"A\"> a) Yellow<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q49\" value=\"B\"> b) Black<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q49\" value=\"C\"> c) Gray<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q49\" value=\"D\"> d) Red<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 50 -->\n<div class=\"quiz-question\">\n    <p>50. Which Philippine soil series is best suited for irrigated lowland rice production?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q50\" value=\"A\"> a) San Manuel<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q50\" value=\"B\"> b) Luisiana<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q50\" value=\"C\"> c) San Ricardo<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q50\" value=\"D\"> d) Maligaya<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 51 -->\n<div class=\"quiz-question\">\n    <p>51. What is the function of mycorrhizal fungi in soil?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q51\" value=\"A\"> a) Nitrogen fixation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q51\" value=\"B\"> b) Decomposition of organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q51\" value=\"C\"> c) Phosphorus uptake enhancement<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q51\" value=\"D\"> d) Denitrification<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 52 -->\n<div class=\"quiz-question\">\n    <p>52. Which clay mineral has a 2:1 layer structure and high swelling capacity?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q52\" value=\"A\"> a) Kaolinite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q52\" value=\"B\"> b) Illite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q52\" value=\"C\"> c) Chlorite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q52\" value=\"D\"> d) Montmorillonite<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 53 -->\n<div class=\"quiz-question\">\n    <p>53. What does the term \u201csoil porosity\u201d refer to?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q53\" value=\"A\"> a) Soil compaction level<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q53\" value=\"B\"> b) Air content of the soil<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q53\" value=\"C\"> c) Percentage of pore space in soil<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q53\" value=\"D\"> d) Organic matter percentage<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 54 -->\n<div class=\"quiz-question\">\n    <p>54. Which nutrient is considered mobile in the soil and easily lost by leaching?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q54\" value=\"A\"> a) Phosphorus<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q54\" value=\"B\"> b) Potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q54\" value=\"C\"> c) Nitrate nitrogen<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q54\" value=\"D\"> d) Calcium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 55 -->\n<div class=\"quiz-question\">\n    <p>55. What is the method used to determine soil texture in the laboratory?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q55\" value=\"A\"> a) Tensiometer method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q55\" value=\"B\"> b) Hydrometer method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q55\" value=\"C\"> c) Conductivity meter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q55\" value=\"D\"> d) Flame photometer<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 56 -->\n<div class=\"quiz-question\">\n    <p>56. Which soil property influences nutrient retention the most?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q56\" value=\"A\"> a) Soil pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q56\" value=\"B\"> b) Cation exchange capacity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q56\" value=\"C\"> c) Soil color<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q56\" value=\"D\"> d) Soil temperature<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 57 -->\n<div class=\"quiz-question\">\n    <p>57. Which of the following is considered a micronutrient for plant growth?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q57\" value=\"A\"> a) Nitrogen<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q57\" value=\"B\"> b) Potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q57\" value=\"C\"> c) Zinc<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q57\" value=\"D\"> d) Calcium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 58 -->\n<div class=\"quiz-question\">\n    <p>58. Which soil amendment is primarily used to raise the pH of acidic soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q58\" value=\"A\"> a) Sulfur<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q58\" value=\"B\"> b) Lime<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q58\" value=\"C\"> c) Gypsum<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q58\" value=\"D\"> d) Urea<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 59 -->\n<div class=\"quiz-question\">\n    <p>59. What is the main role of humus in the soil?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q59\" value=\"A\"> a) Increase salinity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q59\" value=\"B\"> b) Reduce pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q59\" value=\"C\"> c) Improve nutrient and water retention<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q59\" value=\"D\"> d) Act as a pesticide<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 60 -->\n<div class=\"quiz-question\">\n    <p>60. What is the term for soils with high amounts of sodium and poor structure?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q60\" value=\"A\"> a) Saline soils<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q60\" value=\"B\"> b) Sodic soils<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q60\" value=\"C\"> c) Acid sulfate soils<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q60\" value=\"D\"> d) Peaty soils<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 61 -->\n<div class=\"quiz-question\">\n    <p>61. Which laboratory method is used to determine soil organic carbon?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q61\" value=\"A\"> a) Kjeldahl method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q61\" value=\"B\"> b) Walkley-Black method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q61\" value=\"C\"> c) Hydrometer method<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q61\" value=\"D\"> d) DTPA extraction<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 62 -->\n<div class=\"quiz-question\">\n    <p>62. Which form of potassium is readily available to plants?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q62\" value=\"A\"> a) Mineral potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q62\" value=\"B\"> b) Fixed potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q62\" value=\"C\"> c) Exchangeable potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q62\" value=\"D\"> d) Organic potassium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 63 -->\n<div class=\"quiz-question\">\n    <p>63. What does SAR (Sodium Adsorption Ratio) indicate in soil analysis?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q63\" value=\"A\"> a) Soil acidity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q63\" value=\"B\"> b) Soil nitrogen status<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q63\" value=\"C\"> c) Sodium hazard in irrigation water<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q63\" value=\"D\"> d) Potassium availability<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 64 -->\n<div class=\"quiz-question\">\n    <p>64. Which element is typically deficient in calcareous soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q64\" value=\"A\"> a) Calcium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q64\" value=\"B\"> b) Iron<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q64\" value=\"C\"> c) Potassium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q64\" value=\"D\"> d) Sulfur<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 65 -->\n<div class=\"quiz-question\">\n    <p>65. What is the major form of sulfur taken up by plants?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q65\" value=\"A\"> a) Sulfide (S<sup>2\u2212<\/sup>)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q65\" value=\"B\"> b) Sulfate (SO\u2084<sup>2\u2212<\/sup>)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q65\" value=\"C\"> c) Elemental sulfur (S)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q65\" value=\"D\"> d) Organic sulfur compounds<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 66 -->\n<div class=\"quiz-question\">\n    <p>66. What is the color of a soil with good drainage and high iron oxidation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q66\" value=\"A\"> a) Gray<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q66\" value=\"B\"> b) Yellow<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q66\" value=\"C\"> c) Red<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q66\" value=\"D\"> d) Blue<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 67 -->\n<div class=\"quiz-question\">\n    <p>67. Which Philippine government agency is responsible for soil survey and classification?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q67\" value=\"A\"> a) Bureau of Agriculture and Fisheries Standards (BAFS)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q67\" value=\"B\"> b) Bureau of Soils and Water Management (BSWM)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q67\" value=\"C\"> c) Bureau of Plant Industry (BPI)<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q67\" value=\"D\"> d) Philippine Council for Agriculture and Fisheries (PCAF)<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 68 -->\n<div class=\"quiz-question\">\n    <p>68. What does the term &#8220;pedon&#8221; refer to in soil science?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q68\" value=\"A\"> a) A smallest unit of soil profile for study<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q68\" value=\"B\"> b) A type of clay particle<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q68\" value=\"C\"> c) A horizon boundary<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q68\" value=\"D\"> d) A soil amendment material<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 69 -->\n<div class=\"quiz-question\">\n    <p>69. Which soil diagnostic horizon is rich in organic matter and found at the top?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q69\" value=\"A\"> a) Mollic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q69\" value=\"B\"> b) Argillic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q69\" value=\"C\"> c) Spodic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q69\" value=\"D\"> d) Cambic<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 70 -->\n<div class=\"quiz-question\">\n    <p>70. What does the term \u201cfield capacity\u201d refer to in soil water terminology?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q70\" value=\"A\"> a) Maximum water held under saturation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q70\" value=\"B\"> b) Water held against gravity at wilting point<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q70\" value=\"C\"> c) Water retained after gravitational drainage<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q70\" value=\"D\"> d) Capillary rise from water table<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 71 -->\n<div class=\"quiz-question\">\n    <p>71. What is the primary effect of soil compaction on plant growth?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q71\" value=\"A\"> a) Reduces root penetration and aeration<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q71\" value=\"B\"> b) Increases microbial activity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q71\" value=\"C\"> c) Enhances nutrient mobility<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q71\" value=\"D\"> d) Improves water infiltration<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 72 -->\n<div class=\"quiz-question\">\n    <p>72. Which of the following best describes a spodic horizon?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q72\" value=\"A\"> a) A horizon rich in clay<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q72\" value=\"B\"> b) A horizon with accumulation of organic matter and aluminum, often acidic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q72\" value=\"C\"> c) A layer of accumulated calcium carbonate<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q72\" value=\"D\"> d) A weathered horizon with little clay<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 73 -->\n<div class=\"quiz-question\">\n    <p>73. Which parent material originates from volcanic ash?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q73\" value=\"A\"> a) Alluvium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q73\" value=\"B\"> b) Andesite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q73\" value=\"C\"> c) Loess<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q73\" value=\"D\"> d) Colluvium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 74 -->\n<div class=\"quiz-question\">\n    <p>74. Which soil moisture condition is most suitable for seed germination?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q74\" value=\"A\"> a) Saturation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q74\" value=\"B\"> b) Wilting point<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q74\" value=\"C\"> c) Field capacity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q74\" value=\"D\"> d) Hygroscopic coefficient<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 75 -->\n<div class=\"quiz-question\">\n    <p>75. What is the role of gypsum in reclaiming sodic soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q75\" value=\"A\"> a) Reduces pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q75\" value=\"B\"> b) Increases organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q75\" value=\"C\"> c) Increases sodium content<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q75\" value=\"D\"> d) Replaces exchangeable sodium with calcium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 76 -->\n<div class=\"quiz-question\">\n    <p>76. Which diagnostic horizon is characterized by significant clay illuviation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q76\" value=\"A\"> a) Argillic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q76\" value=\"B\"> b) Cambic<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q76\" value=\"C\"> c) Ochric<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q76\" value=\"D\"> d) Mollic<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 77 -->\n<div class=\"quiz-question\">\n    <p>77. What is the primary process responsible for soil acidification in tropical soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q77\" value=\"A\"> a) Calcium carbonate leaching<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q77\" value=\"B\"> b) Nitrate immobilization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q77\" value=\"C\"> c) Leaching of base-forming cations<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q77\" value=\"D\"> d) Accumulation of organic matter<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 78 -->\n<div class=\"quiz-question\">\n    <p>78. Which soil amendment is used to improve saline soil condition?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q78\" value=\"A\"> a) Sulfur<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q78\" value=\"B\"> b) Ammonium sulfate<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q78\" value=\"C\"> c) Gypsum<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q78\" value=\"D\"> d) Dolomite<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 79 -->\n<div class=\"quiz-question\">\n    <p>79. Which of the following is a major factor influencing soil formation in upland areas?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q79\" value=\"A\"> a) Irrigation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q79\" value=\"B\"> b) Topography<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q79\" value=\"C\"> c) Parent material<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q79\" value=\"D\"> d) Groundwater level<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 80 -->\n<div class=\"quiz-question\">\n    <p>80. Which fertilizer is most acid-forming when applied continuously?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q80\" value=\"A\"> a) Urea<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q80\" value=\"B\"> b) Single super phosphate<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q80\" value=\"C\"> c) Ammonium sulfate<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q80\" value=\"D\"> d) Muriate of potash<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 81 -->\n<div class=\"quiz-question\">\n    <p>81. What is the term for the downward movement of clay particles from upper to lower horizons?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q81\" value=\"A\"> a) Lessivage<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q81\" value=\"B\"> b) Podzolization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q81\" value=\"C\"> c) Calcification<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q81\" value=\"D\"> d) Illuviation<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 82 -->\n<div class=\"quiz-question\">\n    <p>82. Which horizon typically shows evidence of eluviation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q82\" value=\"A\"> a) A horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q82\" value=\"B\"> b) B horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q82\" value=\"C\"> c) E horizon<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q82\" value=\"D\"> d) R horizon<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 83 -->\n<div class=\"quiz-question\">\n    <p>83. What does bulk density of soil primarily influence?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q83\" value=\"A\"> a) Soil pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q83\" value=\"B\"> b) Root penetration<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q83\" value=\"C\"> c) Soil texture<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q83\" value=\"D\"> d) Soil color<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 84 -->\n<div class=\"quiz-question\">\n    <p>84. Which micronutrient becomes more available in acidic soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q84\" value=\"A\"> a) Molybdenum<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q84\" value=\"B\"> b) Boron<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q84\" value=\"C\"> c) Calcium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q84\" value=\"D\"> d) Iron<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 85 -->\n<div class=\"quiz-question\">\n    <p>85. What is the key feature of vertisols?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q85\" value=\"A\"> a) Rich in organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q85\" value=\"B\"> b) High shrink-swell capacity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q85\" value=\"C\"> c) Strong acidity<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q85\" value=\"D\"> d) Poor cation exchange<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 86 -->\n<div class=\"quiz-question\">\n    <p>86. Which of the following is considered a residual parent material?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q86\" value=\"A\"> a) Loess<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q86\" value=\"B\"> b) Alluvium<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q86\" value=\"C\"> c) Basalt<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q86\" value=\"D\"> d) Colluvium<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 87 -->\n<div class=\"quiz-question\">\n    <p>87. What process causes the accumulation of soluble salts at the surface?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q87\" value=\"A\"> a) Capillary rise<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q87\" value=\"B\"> b) Leaching<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q87\" value=\"C\"> c) Desalinization<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q87\" value=\"D\"> d) Precipitation<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 88 -->\n<div class=\"quiz-question\">\n    <p>88. What is the main factor affecting soil color?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q88\" value=\"A\"> a) Soil pH<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q88\" value=\"B\"> b) Organic matter and iron content<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q88\" value=\"C\"> c) Texture<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q88\" value=\"D\"> d) Porosity<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 89 -->\n<div class=\"quiz-question\">\n    <p>89. Which clay mineral is least active in terms of cation exchange capacity?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q89\" value=\"A\"> a) Montmorillonite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q89\" value=\"B\"> b) Vermiculite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q89\" value=\"C\"> c) Kaolinite<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q89\" value=\"D\"> d) Illite<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 90 -->\n<div class=\"quiz-question\">\n    <p>90. In a soil textural triangle, what are the three main components used to determine soil texture?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q90\" value=\"A\"> a) Clay, sand, gravel<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q90\" value=\"B\"> b) Sand, clay, silt<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q90\" value=\"C\"> c) Clay, silt, organic matter<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q90\" value=\"D\"> d) Sand, loam, clay<\/label><\/li>\n    <\/ul>\n<\/div>\n<!-- Question 91 -->\n<div class=\"quiz-question\">\n    <p>91. Which property is used to classify soil as saline, sodic, or saline-sodic?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q91\" value=\"A\"> a) Soil color<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q91\" value=\"B\"> b) Electrical conductivity and exchangeable sodium percentage<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q91\" value=\"C\"> c) Bulk density<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q91\" value=\"D\"> d) Organic matter content<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 92 -->\n<div class=\"quiz-question\">\n    <p>92. Which element is responsible for the reddish color in tropical soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q92\" value=\"A\"> a) Manganese<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q92\" value=\"B\"> b) Iron<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q92\" value=\"C\"> c) Sulfur<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q92\" value=\"D\"> d) Aluminum<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 93 -->\n<div class=\"quiz-question\">\n    <p>93. Which Philippine soil order is commonly found in upland volcanic areas?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q93\" value=\"A\"> a) Ultisols<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q93\" value=\"B\"> b) Entisols<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q93\" value=\"C\"> c) Vertisols<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q93\" value=\"D\"> d) Andisols<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 94 -->\n<div class=\"quiz-question\">\n    <p>94. What is the process of nutrient movement towards plant roots due to water uptake called?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q94\" value=\"A\"> a) Diffusion<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q94\" value=\"B\"> b) Mass flow<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q94\" value=\"C\"> c) Root interception<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q94\" value=\"D\"> d) Leaching<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 95 -->\n<div class=\"quiz-question\">\n    <p>95. Which of the following is a product of mineral weathering in soil formation?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q95\" value=\"A\"> a) Organic acids<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q95\" value=\"B\"> b) Clay minerals<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q95\" value=\"C\"> c) Silica sand<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q95\" value=\"D\"> d) Peat<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 96 -->\n<div class=\"quiz-question\">\n    <p>96. Which of the following soil organisms is most effective in decomposing cellulose?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q96\" value=\"A\"> a) Fungi<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q96\" value=\"B\"> b) Actinomycetes<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q96\" value=\"C\"> c) Nematodes<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q96\" value=\"D\"> d) Algae<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 97 -->\n<div class=\"quiz-question\">\n    <p>97. What is the typical pH range of most productive agricultural soils?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q97\" value=\"A\"> a) 3.5 to 4.5<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q97\" value=\"B\"> b) 5.5 to 6.5<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q97\" value=\"C\"> c) 7.5 to 8.5<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q97\" value=\"D\"> d) 2.5 to 3.5<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 98 -->\n<div class=\"quiz-question\">\n    <p>98. Which soil enzyme is associated with phosphorus mineralization?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q98\" value=\"A\"> a) Urease<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q98\" value=\"B\"> b) Phosphatase<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q98\" value=\"C\"> c) Dehydrogenase<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q98\" value=\"D\"> d) Catalase<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 99 -->\n<div class=\"quiz-question\">\n    <p>99. Which practice enhances the physical condition of soil and promotes root growth?<\/p>\n    <ul class=\"quiz-options\">\n        <li><label><input type=\"radio\" name=\"q99\" value=\"A\"> a) Frequent irrigation<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q99\" value=\"B\"> b) Deep tillage<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q99\" value=\"C\"> c) Surface mulching<\/label><\/li>\n        <li><label><input type=\"radio\" name=\"q99\" value=\"D\"> d) Application of herbicides<\/label><\/li>\n    <\/ul>\n<\/div>\n\n<!-- Question 100 -->\n<div class=\"quiz-question\">\n    <p>100. 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You can also connect with&nbsp;<a href=\"https:\/\/agriculturereview.com\/agriculture-hashtags-for-instagram-facebook-twitter\" target=\"_blank\" rel=\"noreferrer noopener\">Agriculture Review on Facebook<\/a>, Instagram, Koo and WhatsApp Messenger.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hey students, preparing for your upcoming agriculture examinations but confused about whether your preparation is going well or not? Well, no more! At Agriculture Review, we keep updating new test series based on previous years\u2019 questions of the PRC Licensure Examination for Agriculturists. In this test, you have to attempt 100 questions from the Soil&#8230;<\/p>","protected":false},"author":1,"featured_media":21067,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[6,733],"tags":[905,904,7329,7330,7327],"class_list":["post-21065","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agriculture","category-quiz","tag-agriculture-reviewer","tag-licensure-examination-for-agriculturist","tag-mcq","tag-questions","tag-reviewer"],"_links":{"self":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/21065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/comments?post=21065"}],"version-history":[{"count":2,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/21065\/revisions"}],"predecessor-version":[{"id":21069,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/21065\/revisions\/21069"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/media\/21067"}],"wp:attachment":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/media?parent=21065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/categories?post=21065"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/tags?post=21065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}