{"id":21341,"date":"2025-07-31T15:49:49","date_gmt":"2025-07-31T10:19:49","guid":{"rendered":"https:\/\/agriculturereview.com\/?p=21341"},"modified":"2025-08-02T14:10:21","modified_gmt":"2025-08-02T08:40:21","slug":"100-soil-science-mcqs-for-competitive-exams","status":"publish","type":"post","link":"https:\/\/agriculturereview.com\/hi\/100-soil-science-mcqs-for-competitive-exams\/","title":{"rendered":"100 Soil Science MCQs for Competitive Agriculture Exams"},"content":{"rendered":"\n<p>Hey students, preparing for your upcoming <a href=\"https:\/\/agriculturereview.com\/prc-licensure-exam-animal-science-reviewer\/\" data-type=\"post\" data-id=\"20810\" target=\"_blank\" 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 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-btns21341_4558cd-81{gap:var(--global-kb-gap-xs, 0.5rem );justify-content:center;align-items:center;}.kt-btns21341_4558cd-81 .kt-button{font-weight:normal;font-style:normal;}.kt-btns21341_4558cd-81 .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns21341_4558cd-81 .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns21341_4558cd-81 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns21341_4558cd-81 .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns21341_4558cd-81 .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns21341_4558cd-81 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns21341_4558cd-81 .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns21341_4558cd-81\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn21341_f0feac-f3.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn21341_f0feac-f3.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-btn21341_f0feac-f3 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<style>.kb-image21341_f9c2d5-0e .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image21341_f9c2d5-0e img.kb-img, .kb-image21341_f9c2d5-0e .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;filter:drop-shadow(0px 0px 14px rgba(0, 0, 0, 0.2));}<\/style>\n<figure class=\"wp-block-kadence-image kb-image21341_f9c2d5-0e size-large\"><a href=\"https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams.webp\" class=\"kb-advanced-image-link\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-1024x512.webp\" alt=\"100-soil-science-mcqs-for-competitive-exams\" class=\"kb-img wp-image-21345\" srcset=\"https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-1024x512.webp 1024w, https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-300x150.webp 300w, https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-768x384.webp 768w, https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-18x9.webp 18w, https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-600x300.webp 600w, https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams-150x75.webp 150w, https:\/\/agriculturereview.com\/wp-content\/uploads\/2025\/07\/100-soil-science-mcqs-for-competitive-exams.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\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 MCQs<\/title>\n\n  <!-- \u2705 Font Awesome for Icons -->\n  <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.5.0\/css\/all.min.css\"\/>\n\n  <!-- \u2705 Clean Style -->\n  <style>\n   \n\n    .quiz-container {\n      margin: 0 auto;\n      padding: 20px;\n      max-width: 800px;\n      background-color: transparent; \/* \u2705 Remove box background *\/\n    }\n\n    .quiz-header h2 {\n      text-align: center;\n      margin-bottom: 30px;\n      color: #333;\n    }\n\n    .quiz-question {\n      margin-bottom: 25px;\n      padding: 20px;\n      border-left: 5px solid #2b4d09;\n      background-color: #ffffff;\n      border-radius: 10px;\n      box-shadow: 0 2px 5px rgba(0,0,0,0.05);\n    }\n\n    .quiz-question p {\n      font-size: 17px;\n      font-weight: 600;\n      margin-bottom: 10px;\n    }\n\n    .quiz-options {\n      list-style-type: none;\n      padding: 0;\n    }\n\n    .quiz-options label {\n      display: block;\n      padding: 10px;\n      border: 1px solid #ccc;\n      border-radius: 6px;\n      margin-bottom: 10px;\n      cursor: pointer;\n      transition: all 0.2s;\n    }\n\n    .quiz-options input[type=\"radio\"] {\n      margin-right: 10px;\n    }\n\n    .quiz-options label:hover,\n    .quiz-options input[type=\"radio\"]:checked + label {\n      background-color: #e6f4ea;\n      border-color: #2b4d09;\n    }\n\n    .quiz-button {\n      background-color: #2b4d09;\n      color: #fff;\n      padding: 12px 25px;\n      font-size: 16px;\n      border: none;\n      border-radius: 50px;\n      cursor: pointer;\n      display: block;\n      margin: 30px auto 0;\n      transition: background-color 0.3s;\n    }\n\n    .quiz-button:hover {\n      background-color: #f7cd0d;\n    }\n\n    .result-container {\n      margin-top: 30px;\n      padding: 20px;\n      background-color: #fff;\n      border-radius: 10px;\n      display: none;\n      box-shadow: 0 2px 10px rgba(0,0,0,0.05);\n    }\n\n    .result-header h2 {\n      text-align: center;\n      margin-bottom: 20px;\n    }\n\n    .result-score {\n      font-size: 18px;\n      font-weight: bold;\n      text-align: center;\n      margin-bottom: 15px;\n    }\n\n    .result {\n      padding: 10px;\n      margin-bottom: 10px;\n      border-radius: 6px;\n    }\n\n    .correct {\n      background-color: #d4edda;\n      color: #155724;\n    }\n\n    .incorrect {\n      background-color: #f8d7da;\n      color: #721c24;\n    }\n\n    .result-share {\n      text-align: center;\n      margin-top: 25px;\n    }\n\n    .share-buttons {\n      display: flex;\n      justify-content: center;\n      gap: 10px;\n      margin-top: 10px;\n    }\n\n    .share-buttons a {\n      display: flex;\n      align-items: center;\n      justify-content: center;\n      width: 45px;\n      height: 45px;\n      border-radius: 50%;\n      color: #fff;\n      font-size: 20px;\n      text-decoration: none;\n      transition: opacity 0.3s ease;\n    }\n\n    .share-facebook { background-color: #3b5998; }\n    .share-whatsapp { background-color: #25D366; }\n    .share-link { background-color: #555; }\n\n    .share-buttons a:hover {\n      opacity: 0.8;\n    }\n\n    @media (max-width: 600px) {\n      .quiz-options label {\n        font-size: 14px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n  <div class=\"quiz-container\">\n    <div class=\"quiz-header\">\n      <h2>Soil Science MCQs<\/h2>\n    <\/div>\n    <form id=\"quiz-form\">\n     <!-- Question 1 -->\n<div class=\"quiz-question\">\n  <p>1. What does the term \u201cpedology\u201d primarily deal with?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q1\" value=\"A\"> a) Soil fertility and nutrients<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q1\" value=\"B\"> b) Soil in relation to plants<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q1\" value=\"C\"> c) Soil classification and genesis<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q1\" value=\"D\"> d) Soil microbial activity<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 2 -->\n<div class=\"quiz-question\">\n  <p>2. What is the average percentage of mineral matter in soil by volume?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q2\" value=\"A\"> a) 25%<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q2\" value=\"B\"> b) 35%<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q2\" value=\"C\"> c) 45%<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q2\" value=\"D\"> d) 55%<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 3 -->\n<div class=\"quiz-question\">\n  <p>3. Which mineral group contains mica, illite, and montmorillonite?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q3\" value=\"A\"> a) Non-silicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q3\" value=\"B\"> b) Phosphates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q3\" value=\"C\"> c) Silicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q3\" value=\"D\"> d) Carbonates<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 4 -->\n<div class=\"quiz-question\">\n  <p>4. Which of the following is classified as an intrusive igneous rock?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q4\" value=\"A\"> a) Basalt<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q4\" value=\"B\"> b) Granite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q4\" value=\"C\"> c) Limestone<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q4\" value=\"D\"> d) Slate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 5 -->\n<div class=\"quiz-question\">\n  <p>5. Which gas is present in the highest volume in the atmosphere?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q5\" value=\"A\"> a) Oxygen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q5\" value=\"B\"> b) Carbon dioxide<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q5\" value=\"C\"> c) Nitrogen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q5\" value=\"D\"> d) Argon<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 6 -->\n<div class=\"quiz-question\">\n  <p>6. What is the meaning of the Latin word \u201cSolum\u201d from which \u2018soil\u2019 is derived?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q6\" value=\"A\"> a) Dust<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q6\" value=\"B\"> b) Floor<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q6\" value=\"C\"> c) Ground<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q6\" value=\"D\"> d) Earth<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 7 -->\n<div class=\"quiz-question\">\n  <p>7. Which mineral is most resistant to weathering?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q7\" value=\"A\"> a) Olivine<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q7\" value=\"B\"> b) Feldspar<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q7\" value=\"C\"> c) Quartz<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q7\" value=\"D\"> d) Biotite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 8 -->\n<div class=\"quiz-question\">\n  <p>8. Which clay mineral is known for high swelling and shrinkage characteristics?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q8\" value=\"A\"> a) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q8\" value=\"B\"> b) Montmorillonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q8\" value=\"C\"> c) Illite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q8\" value=\"D\"> d) Vermiculite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 9 -->\n<div class=\"quiz-question\">\n  <p>9. Which soil component acts like the brain in an animal system analogy?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q9\" value=\"A\"> a) Soil air<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q9\" value=\"B\"> b) Soil clay<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q9\" value=\"C\"> c) Organic matter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q9\" value=\"D\"> d) Soil moisture<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 10 -->\n<div class=\"quiz-question\">\n  <p>10. Which scientist is known as the &#8220;Father of Soil Science&#8221;?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q10\" value=\"A\"> a) Hilgard<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q10\" value=\"B\"> b) Joffe<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q10\" value=\"C\"> c) Dokuchaiev<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q10\" value=\"D\"> d) Jenny<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 11 -->\n<div class=\"quiz-question\">\n  <p>11. Which rock is formed by chemical precipitation of calcium carbonate?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q11\" value=\"A\"> a) Shale<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q11\" value=\"B\"> b) Limestone<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q11\" value=\"C\"> c) Slate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q11\" value=\"D\"> d) Granite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 12 -->\n<div class=\"quiz-question\">\n  <p>12. The mineral \u201cgibbsite\u201d is a common form of:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q12\" value=\"A\"> a) Iron oxide<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q12\" value=\"B\"> b) Calcium carbonate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q12\" value=\"C\"> c) Aluminium hydroxide<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q12\" value=\"D\"> d) Silica<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 13 -->\n<div class=\"quiz-question\">\n  <p>13. Which process causes soil color to turn red due to oxidation of iron?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q13\" value=\"A\"> a) Hydration<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q13\" value=\"B\"> b) Carbonation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q13\" value=\"C\"> c) Oxidation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q13\" value=\"D\"> d) Reduction<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 14 -->\n<div class=\"quiz-question\">\n  <p>14. Which element dominates the Earth\u2019s crust by weight?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q14\" value=\"A\"> a) Iron<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q14\" value=\"B\"> b) Oxygen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q14\" value=\"C\"> c) Silica<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q14\" value=\"D\"> d) Aluminium<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 15 -->\n<div class=\"quiz-question\">\n  <p>15. The process of transformation of solid rocks into parent material is known as:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q15\" value=\"A\"> a) Metamorphism<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q15\" value=\"B\"> b) Weathering<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q15\" value=\"C\"> c) Sedimentation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q15\" value=\"D\"> d) Cementation<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 16 -->\n<div class=\"quiz-question\">\n  <p>16. Which mineral among the following is a non-silicate?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q16\" value=\"A\"> a) Quartz<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q16\" value=\"B\"> b) Calcite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q16\" value=\"C\"> c) Feldspar<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q16\" value=\"D\"> d) Muscovite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 17 -->\n<div class=\"quiz-question\">\n  <p>17. Which of the following contributes to soil acidification through leaching?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q17\" value=\"A\"> a) Calcium carbonate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q17\" value=\"B\"> b) Hydrogen ions<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q17\" value=\"C\"> c) Nitrates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q17\" value=\"D\"> d) Potassium ions<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 18 -->\n<div class=\"quiz-question\">\n  <p>18. Which layer of the Earth contains most of the soil-forming rocks?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q18\" value=\"A\"> a) Mantle<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q18\" value=\"B\"> b) Lithosphere<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q18\" value=\"C\"> c) Core<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q18\" value=\"D\"> d) Atmosphere<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 19 -->\n<div class=\"quiz-question\">\n  <p>19. What kind of silicate structure is found in amphiboles?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q19\" value=\"A\"> a) Ortho-silicate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q19\" value=\"B\"> b) Ino-silicate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q19\" value=\"C\"> c) Tecto-silicate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q19\" value=\"D\"> d) Phyllo-silicate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 20 -->\n<div class=\"quiz-question\">\n  <p>20. Which of the following is a ferric oxide that gives red color to soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q20\" value=\"A\"> a) Limonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q20\" value=\"B\"> b) Magnetite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q20\" value=\"C\"> c) Hematite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q20\" value=\"D\"> d) Goethite<\/label><\/li>\n  <\/ul>\n<\/div>\n<!-- Question 21 -->\n<div class=\"quiz-question\">\n  <p>21. Which of the following minerals is classified as a phyllosilicate?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q21\" value=\"A\"> a) Pyroxene<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q21\" value=\"B\"> b) Amphibole<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q21\" value=\"C\"> c) Biotite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q21\" value=\"D\"> d) Olivine<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 22 -->\n<div class=\"quiz-question\">\n  <p>22. Which sedimentary rock is mainly composed of calcium carbonate?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q22\" value=\"A\"> a) Shale<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q22\" value=\"B\"> b) Sandstone<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q22\" value=\"C\"> c) Limestone<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q22\" value=\"D\"> d) Conglomerate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 23 -->\n<div class=\"quiz-question\">\n  <p>23. Which mineral group contributes to the yellow and brown soil colors?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q23\" value=\"A\"> a) Carbonates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q23\" value=\"B\"> b) Silicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q23\" value=\"C\"> c) Iron oxides<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q23\" value=\"D\"> d) Phosphates<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 24 -->\n<div class=\"quiz-question\">\n  <p>24. Which process involves chemical breakdown of rocks by carbonic acid?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q24\" value=\"A\"> a) Oxidation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q24\" value=\"B\"> b) Hydration<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q24\" value=\"C\"> c) Hydrolysis<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q24\" value=\"D\"> d) Carbonation<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 25 -->\n<div class=\"quiz-question\">\n  <p>25. Which mineral in soils contains both calcium and magnesium carbonate?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q25\" value=\"A\"> a) Apatite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q25\" value=\"B\"> b) Gypsum<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q25\" value=\"C\"> c) Dolomite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q25\" value=\"D\"> d) Calcite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 26 -->\n<div class=\"quiz-question\">\n  <p>26. What is the specific gravity range of Gabbro rock?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q26\" value=\"A\"> a) 2.60 to 2.70<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q26\" value=\"B\"> b) 2.85 to 2.95<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q26\" value=\"C\"> c) 3.00<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q26\" value=\"D\"> d) 3.25<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 27 -->\n<div class=\"quiz-question\">\n  <p>27. The double chain silicate structure is found in:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q27\" value=\"A\"> a) Pyroxene<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q27\" value=\"B\"> b) Amphibole<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q27\" value=\"C\"> c) Mica<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q27\" value=\"D\"> d) Feldspar<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 28 -->\n<div class=\"quiz-question\">\n  <p>28. Which of the following is a major source of phosphorus in soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q28\" value=\"A\"> a) Gibbsite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q28\" value=\"B\"> b) Gypsum<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q28\" value=\"C\"> c) Apatite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q28\" value=\"D\"> d) Limonite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 29 -->\n<div class=\"quiz-question\">\n  <p>29. Which type of clay mineral is dominant in highly weathered tropical soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q29\" value=\"A\"> a) Illite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q29\" value=\"B\"> b) Smectite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q29\" value=\"C\"> c) Vermiculite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q29\" value=\"D\"> d) Kaolinite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 30 -->\n<div class=\"quiz-question\">\n  <p>30. The mineral \u201cgoethite\u201d is classified under which group?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q30\" value=\"A\"> a) Silicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q30\" value=\"B\"> b) Carbonates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q30\" value=\"C\"> c) Oxides<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q30\" value=\"D\"> d) Sulphates<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 31 -->\n<div class=\"quiz-question\">\n  <p>31. Which one of the following is a precipitated salt found in soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q31\" value=\"A\"> a) Gneiss<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q31\" value=\"B\"> b) Dolomite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q31\" value=\"C\"> c) Apatite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q31\" value=\"D\"> d) Limonite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 32 -->\n<div class=\"quiz-question\">\n  <p>32. Which metamorphic rock forms from the alteration of granite?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q32\" value=\"A\"> a) Quartzite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q32\" value=\"B\"> b) Marble<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q32\" value=\"C\"> c) Gneiss<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q32\" value=\"D\"> d) Slate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 33 -->\n<div class=\"quiz-question\">\n  <p>33. The chemical reaction where H<sub>2<\/sub>O molecules split mineral bonds is known as:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q33\" value=\"A\"> a) Hydrolysis<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q33\" value=\"B\"> b) Oxidation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q33\" value=\"C\"> c) Carbonation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q33\" value=\"D\"> d) Reduction<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 34 -->\n<div class=\"quiz-question\">\n  <p>34. Which element substitution makes feldspar more prone to weathering?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q34\" value=\"A\"> a) Na by K<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q34\" value=\"B\"> b) Si by Al<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q34\" value=\"C\"> c) Mg by Fe<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q34\" value=\"D\"> d) Ca by Na<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 35 -->\n<div class=\"quiz-question\">\n  <p>35. Feldspar minerals belong to which structural silicate group?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q35\" value=\"A\"> a) Phyllosilicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q35\" value=\"B\"> b) Tectosilicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q35\" value=\"C\"> c) Inosilicates<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q35\" value=\"D\"> d) Neosilicates<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 36 -->\n<div class=\"quiz-question\">\n  <p>36. Which mineral is primarily responsible for high CEC in black cotton soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q36\" value=\"A\"> a) Vermiculite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q36\" value=\"B\"> b) Montmorillonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q36\" value=\"C\"> c) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q36\" value=\"D\"> d) Illite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 37 -->\n<div class=\"quiz-question\">\n  <p>37. Which of the following is a major limitation of gypsum in arid soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q37\" value=\"A\"> a) Causes waterlogging<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q37\" value=\"B\"> b) Reduces aeration<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q37\" value=\"C\"> c) Increases acidity<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q37\" value=\"D\"> d) Causes sinkholes and structural collapse<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 38 -->\n<div class=\"quiz-question\">\n  <p>38. Which of the following clay minerals shows partial swelling?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q38\" value=\"A\"> a) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q38\" value=\"B\"> b) Vermiculite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q38\" value=\"C\"> c) Montmorillonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q38\" value=\"D\"> d) Illite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 39 -->\n<div class=\"quiz-question\">\n  <p>39. Which mineral alteration indicates high weathering and leaching?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q39\" value=\"A\"> a) Quartz<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q39\" value=\"B\"> b) Gibbsite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q39\" value=\"C\"> c) Olivine<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q39\" value=\"D\"> d) Feldspar<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 40 -->\n<div class=\"quiz-question\">\n  <p>40. What is the approximate size limit (diameter) of clay particles?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q40\" value=\"A\"> a) &lt; 0.002 mm<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q40\" value=\"B\"> b) &lt; 0.02 mm<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q40\" value=\"C\"> c) &lt; 0.2 mm<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q40\" value=\"D\"> d) &lt; 2 mm<\/label><\/li>\n  <\/ul>\n<\/div>\n<!-- Question 41 -->\n<div class=\"quiz-question\">\n  <p>41. What is the term used for water that is held tightly to soil particles and is unavailable to plants?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q41\" value=\"A\"> a) Gravitational water<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q41\" value=\"B\"> b) Capillary water<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q41\" value=\"C\"> c) Hygroscopic water<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q41\" value=\"D\"> d) Field water<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 42 -->\n<div class=\"quiz-question\">\n  <p>42. What is the field capacity of a soil?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q42\" value=\"A\"> a) Maximum amount of water the soil can hold<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q42\" value=\"B\"> b) Water held against gravity after drainage<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q42\" value=\"C\"> c) Water present during saturation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q42\" value=\"D\"> d) Minimum water required by plants<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 43 -->\n<div class=\"quiz-question\">\n  <p>43. Which form of soil water is readily available to plants?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q43\" value=\"A\"> a) Hygroscopic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q43\" value=\"B\"> b) Capillary<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q43\" value=\"C\"> c) Gravitational<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q43\" value=\"D\"> d) Chemical<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 44 -->\n<div class=\"quiz-question\">\n  <p>44. Which instrument is commonly used to measure soil moisture tension?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q44\" value=\"A\"> a) Lysimeter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q44\" value=\"B\"> b) Tensiometer<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q44\" value=\"C\"> c) Barometer<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q44\" value=\"D\"> d) Psychrometer<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 45 -->\n<div class=\"quiz-question\">\n  <p>45. The proportion of air-filled pores is maximum in which soil?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q45\" value=\"A\"> a) Clay<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q45\" value=\"B\"> b) Sandy<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q45\" value=\"C\"> c) Silt loam<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q45\" value=\"D\"> d) Peaty<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 46 -->\n<div class=\"quiz-question\">\n  <p>46. The thermal conductivity of soil is highest when:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q46\" value=\"A\"> a) Soil is dry and sandy<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q46\" value=\"B\"> b) Soil is wet and clayey<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q46\" value=\"C\"> c) Soil has high organic matter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q46\" value=\"D\"> d) Soil is loose and porous<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 47 -->\n<div class=\"quiz-question\">\n  <p>47. Which gas increases in concentration in poorly aerated soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q47\" value=\"A\"> a) Oxygen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q47\" value=\"B\"> b) Carbon dioxide<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q47\" value=\"C\"> c) Nitrogen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q47\" value=\"D\"> d) Argon<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 48 -->\n<div class=\"quiz-question\">\n  <p>48. What does a high Cation Exchange Capacity (CEC) indicate in soil?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q48\" value=\"A\"> a) Low fertility<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q48\" value=\"B\"> b) High nutrient retention<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q48\" value=\"C\"> c) High water retention<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q48\" value=\"D\"> d) Acidic soil reaction<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 49 -->\n<div class=\"quiz-question\">\n  <p>49. Which soil colloid has both permanent and pH-dependent charges?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q49\" value=\"A\"> a) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q49\" value=\"B\"> b) Montmorillonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q49\" value=\"C\"> c) Sesquioxides<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q49\" value=\"D\"> d) Humus<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 50 -->\n<div class=\"quiz-question\">\n  <p>50. What is the unit of Cation Exchange Capacity (CEC)?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q50\" value=\"A\"> a) mhos\/cm<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q50\" value=\"B\"> b) meq\/100g<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q50\" value=\"C\"> c) ppm<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q50\" value=\"D\"> d) g\/cm\u00b3<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 51 -->\n<div class=\"quiz-question\">\n  <p>51. Which soil component has the highest CEC per unit weight?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q51\" value=\"A\"> a) Montmorillonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q51\" value=\"B\"> b) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q51\" value=\"C\"> c) Humus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q51\" value=\"D\"> d) Vermiculite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 52 -->\n<div class=\"quiz-question\">\n  <p>52. Which of the following soil colloids is crystalline in nature?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q52\" value=\"A\"> a) Humus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q52\" value=\"B\"> b) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q52\" value=\"C\"> c) Sesquioxides<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q52\" value=\"D\"> d) Hydrated oxides<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 53 -->\n<div class=\"quiz-question\">\n  <p>53. Which colloid type has the lowest surface area and CEC?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q53\" value=\"A\"> a) Humus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q53\" value=\"B\"> b) Vermiculite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q53\" value=\"C\"> c) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q53\" value=\"D\"> d) Montmorillonite<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 54 -->\n<div class=\"quiz-question\">\n  <p>54. In soil colloids, negative charges arise primarily due to:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q54\" value=\"A\"> a) Adsorption<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q54\" value=\"B\"> b) Isomorphous substitution<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q54\" value=\"C\"> c) Oxidation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q54\" value=\"D\"> d) Polymerization<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 55 -->\n<div class=\"quiz-question\">\n  <p>55. Which of the following anions is held most weakly in soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q55\" value=\"A\"> a) Sulphate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q55\" value=\"B\"> b) Phosphate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q55\" value=\"C\"> c) Nitrate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q55\" value=\"D\"> d) Borate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 56 -->\n<div class=\"quiz-question\">\n  <p>56. Which cation is adsorbed most strongly by soil colloids?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q56\" value=\"A\"> a) Na\u207a<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q56\" value=\"B\"> b) K\u207a<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q56\" value=\"C\"> c) Ca\u00b2\u207a<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q56\" value=\"D\"> d) Al\u00b3\u207a<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 57 -->\n<div class=\"quiz-question\">\n  <p>57. Which of the following represents anion exchange in soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q57\" value=\"A\"> a) OH\u207b exchanged with Cl\u207b<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q57\" value=\"B\"> b) Ca\u00b2\u207a exchanged with K\u207a<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q57\" value=\"C\"> c) Mg\u00b2\u207a exchanged with Na\u207a<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q57\" value=\"D\"> d) Al\u00b3\u207a exchanged with Fe\u00b2\u207a<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 58 -->\n<div class=\"quiz-question\">\n  <p>58. What is the pH range at which most nutrients are optimally available?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q58\" value=\"A\"> a) 3.5\u20134.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q58\" value=\"B\"> b) 5.5\u20137.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q58\" value=\"C\"> c) 7.5\u20138.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q58\" value=\"D\"> d) 8.5\u20139.5<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 59 -->\n<div class=\"quiz-question\">\n  <p>59. Which of the following clay minerals has a 2:1 type structure?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q59\" value=\"A\"> a) Kaolinite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q59\" value=\"B\"> b) Gibbsite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q59\" value=\"C\"> c) Montmorillonite<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q59\" value=\"D\"> d) Allophane<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 60 -->\n<div class=\"quiz-question\">\n  <p>60. Which of the following factors reduces the cation exchange capacity of soil?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q60\" value=\"A\"> a) High pH<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q60\" value=\"B\"> b) High clay content<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q60\" value=\"C\"> c) Low organic matter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q60\" value=\"D\"> d) High silt content<\/label><\/li>\n  <\/ul>\n<\/div>\n<!-- Question 61 -->\n<div class=\"quiz-question\">\n  <p>61. Which component is considered the most stable part of soil organic matter?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q61\" value=\"A\"> a) Cellulose<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q61\" value=\"B\"> b) Lignin<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q61\" value=\"C\"> c) Humus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q61\" value=\"D\"> d) Proteins<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 62 -->\n<div class=\"quiz-question\">\n  <p>62. The ideal carbon to nitrogen (C:N) ratio for rapid decomposition is around:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q62\" value=\"A\"> a) 10:1<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q62\" value=\"B\"> b) 20:1<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q62\" value=\"C\"> c) 30:1<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q62\" value=\"D\"> d) 40:1<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 63 -->\n<div class=\"quiz-question\">\n  <p>63. Which micro-organism is mainly responsible for nitrification in soil?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q63\" value=\"A\"> a) Rhizobium<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q63\" value=\"B\"> b) Azotobacter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q63\" value=\"C\"> c) Nitrosomonas<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q63\" value=\"D\"> d) Clostridium<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 64 -->\n<div class=\"quiz-question\">\n  <p>64. Humification is the process of:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q64\" value=\"A\"> a) Loss of water from soil<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q64\" value=\"B\"> b) Formation of clay minerals<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q64\" value=\"C\"> c) Conversion of organic matter into humus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q64\" value=\"D\"> d) Formation of salts in soil<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 65 -->\n<div class=\"quiz-question\">\n  <p>65. Which organism group dominates soil biomass?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q65\" value=\"A\"> a) Algae<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q65\" value=\"B\"> b) Fungi<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q65\" value=\"C\"> c) Bacteria<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q65\" value=\"D\"> d) Protozoa<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 66 -->\n<div class=\"quiz-question\">\n  <p>66. What is the role of earthworms in soil?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q66\" value=\"A\"> a) Fix atmospheric nitrogen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q66\" value=\"B\"> b) Cause denitrification<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q66\" value=\"C\"> c) Improve aeration and structure<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q66\" value=\"D\"> d) Produce toxins<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 67 -->\n<div class=\"quiz-question\">\n  <p>67. Which process converts organic nitrogen to ammonium?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q67\" value=\"A\"> a) Nitrification<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q67\" value=\"B\"> b) Ammonification<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q67\" value=\"C\"> c) Denitrification<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q67\" value=\"D\"> d) Nitrogen fixation<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 68 -->\n<div class=\"quiz-question\">\n  <p>68. Which of the following is a diagnostic surface horizon?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q68\" value=\"A\"> a) Cambic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q68\" value=\"B\"> b) Argillic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q68\" value=\"C\"> c) Mollic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q68\" value=\"D\"> d) Spodic<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 69 -->\n<div class=\"quiz-question\">\n  <p>69. Which USDA soil order is characterized by permafrost?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q69\" value=\"A\"> a) Histosols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q69\" value=\"B\"> b) Spodosols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q69\" value=\"C\"> c) Gelisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q69\" value=\"D\"> d) Aridisols<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 70 -->\n<div class=\"quiz-question\">\n  <p>70. Which of the following horizons accumulates illuvial clay?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q70\" value=\"A\"> a) O horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q70\" value=\"B\"> b) E horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q70\" value=\"C\"> c) B horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q70\" value=\"D\"> d) C horizon<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 71 -->\n<div class=\"quiz-question\">\n  <p>71. Which soil order is dominant in dry desert regions?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q71\" value=\"A\"> a) Oxisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q71\" value=\"B\"> b) Mollisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q71\" value=\"C\"> c) Aridisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q71\" value=\"D\"> d) Histosols<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 72 -->\n<div class=\"quiz-question\">\n  <p>72. Which horizon is defined as organic surface material?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q72\" value=\"A\"> a) A horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q72\" value=\"B\"> b) B horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q72\" value=\"C\"> c) C horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q72\" value=\"D\"> d) O horizon<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 73 -->\n<div class=\"quiz-question\">\n  <p>73. Entisols are characterized by:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q73\" value=\"A\"> a) Well-developed profiles<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q73\" value=\"B\"> b) Permafrost layer<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q73\" value=\"C\"> c) Organic accumulation<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q73\" value=\"D\"> d) Weak or no horizon development<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 74 -->\n<div class=\"quiz-question\">\n  <p>74. Which horizon generally shows maximum biological activity?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q74\" value=\"A\"> a) B horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q74\" value=\"B\"> b) A horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q74\" value=\"C\"> c) C horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q74\" value=\"D\"> d) E horizon<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 75 -->\n<div class=\"quiz-question\">\n  <p>75. Which soil order is common in tropical rainforests and is highly weathered?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q75\" value=\"A\"> a) Ultisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q75\" value=\"B\"> b) Oxisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q75\" value=\"C\"> c) Alfisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q75\" value=\"D\"> d) Inceptisols<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 76 -->\n<div class=\"quiz-question\">\n  <p>76. Spodic horizon is diagnostic for which soil order?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q76\" value=\"A\"> a) Spodosols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q76\" value=\"B\"> b) Mollisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q76\" value=\"C\"> c) Entisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q76\" value=\"D\"> d) Histosols<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 77 -->\n<div class=\"quiz-question\">\n  <p>77. Which of the following soil orders has the highest fertility level?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q77\" value=\"A\"> a) Ultisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q77\" value=\"B\"> b) Mollisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q77\" value=\"C\"> c) Oxisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q77\" value=\"D\"> d) Spodosols<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 78 -->\n<div class=\"quiz-question\">\n  <p>78. Which soil order is most recent in formation?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q78\" value=\"A\"> a) Entisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q78\" value=\"B\"> b) Alfisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q78\" value=\"C\"> c) Vertisols<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q78\" value=\"D\"> d) Inceptisols<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 79 -->\n<div class=\"quiz-question\">\n  <p>79. Which diagnostic horizon is rich in organic carbon and calcium?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q79\" value=\"A\"> a) Albic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q79\" value=\"B\"> b) Spodic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q79\" value=\"C\"> c) Mollic<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q79\" value=\"D\"> d) Oxic<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 80 -->\n<div class=\"quiz-question\">\n  <p>80. Which horizon is most affected by eluviation?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q80\" value=\"A\"> a) O horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q80\" value=\"B\"> b) A horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q80\" value=\"C\"> c) E horizon<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q80\" value=\"D\"> d) B horizon<\/label><\/li>\n  <\/ul>\n<\/div>\n<!-- Question 81 -->\n<div class=\"quiz-question\">\n  <p>81. A soil is generally considered fertile when its base saturation is:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q81\" value=\"A\"> a) Less than 50%<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q81\" value=\"B\"> b) Around 60%<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q81\" value=\"C\"> c) More than 80%<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q81\" value=\"D\"> d) Exactly 100%<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 82 -->\n<div class=\"quiz-question\">\n  <p>82. Which element is primarily responsible for soil acidity in clay colloids?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q82\" value=\"A\"> a) Sodium<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q82\" value=\"B\"> b) Calcium<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q82\" value=\"C\"> c) Hydrogen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q82\" value=\"D\"> d) Magnesium<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 83 -->\n<div class=\"quiz-question\">\n  <p>83. Exchangeable sodium percentage (ESP) is calculated as:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q83\" value=\"A\"> a) (Na\u207a \/ Total bases) \u00d7 100<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q83\" value=\"B\"> b) (Na\u207a \/ CEC) \u00d7 100<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q83\" value=\"C\"> c) (Na\u207a \/ Base saturation) \u00d7 100<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q83\" value=\"D\"> d) (Na\u207a \/ Ca\u00b2\u207a) \u00d7 100<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 84 -->\n<div class=\"quiz-question\">\n  <p>84. Which type of soil is most prone to nutrient leaching?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q84\" value=\"A\"> a) Clay<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q84\" value=\"B\"> b) Loam<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q84\" value=\"C\"> c) Sandy<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q84\" value=\"D\"> d) Silt loam<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 85 -->\n<div class=\"quiz-question\">\n  <p>85. Which amendment is commonly used to reclaim sodic soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q85\" value=\"A\"> a) Lime<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q85\" value=\"B\"> b) Gypsum<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q85\" value=\"C\"> c) Sulfur<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q85\" value=\"D\"> d) Urea<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 86 -->\n<div class=\"quiz-question\">\n  <p>86. Liming an acid soil increases availability of:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q86\" value=\"A\"> a) Iron<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q86\" value=\"B\"> b) Manganese<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q86\" value=\"C\"> c) Phosphorus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q86\" value=\"D\"> d) Boron<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 87 -->\n<div class=\"quiz-question\">\n  <p>87. What is the pH range of saline soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q87\" value=\"A\"> a) 4.0\u20135.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q87\" value=\"B\"> b) 6.0\u20137.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q87\" value=\"C\"> c) 7.5\u20138.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q87\" value=\"D\"> d) Above 9.5<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 88 -->\n<div class=\"quiz-question\">\n  <p>88. Which soil property is most important for nutrient retention?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q88\" value=\"A\"> a) Bulk density<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q88\" value=\"B\"> b) Cation exchange capacity<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q88\" value=\"C\"> c) Soil colour<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q88\" value=\"D\"> d) Infiltration rate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 89 -->\n<div class=\"quiz-question\">\n  <p>89. In saline soils, the major soluble salt is usually:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q89\" value=\"A\"> a) Calcium carbonate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q89\" value=\"B\"> b) Sodium chloride<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q89\" value=\"C\"> c) Magnesium sulfate<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q89\" value=\"D\"> d) Calcium sulfate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 90 -->\n<div class=\"quiz-question\">\n  <p>90. Split application of fertilizers is recommended in:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q90\" value=\"A\"> a) Clay soils<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q90\" value=\"B\"> b) Sandy soils<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q90\" value=\"C\"> c) Silty soils<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q90\" value=\"D\"> d) Peaty soils<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 91 -->\n<div class=\"quiz-question\">\n  <p>91. Which element is most likely to leach from sandy soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q91\" value=\"A\"> a) Nitrogen (NO3\u207b form)<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q91\" value=\"B\"> b) Phosphorus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q91\" value=\"C\"> c) Potassium<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q91\" value=\"D\"> d) Calcium carbonate<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 92 -->\n<div class=\"quiz-question\">\n  <p>92. Gypsum application to sodic soils helps mainly by:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q92\" value=\"A\"> a) Reducing soil pH<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q92\" value=\"B\"> b) Replacing Na\u207a with Ca\u00b2\u207a on exchange sites<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q92\" value=\"C\"> c) Adding organic matter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q92\" value=\"D\"> d) Lowering salinity directly<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 93 -->\n<div class=\"quiz-question\">\n  <p>93. Soil pH is defined as:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q93\" value=\"A\"> a) Log of H\u207a ion concentration<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q93\" value=\"B\"> b) Negative log of H\u207a ion concentration<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q93\" value=\"C\"> c) Log of OH\u207b concentration<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q93\" value=\"D\"> d) Negative log of OH\u207b concentration<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 94 -->\n<div class=\"quiz-question\">\n  <p>94. Which nutrient deficiency is commonly observed in strongly alkaline soils?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q94\" value=\"A\"> a) Zinc<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q94\" value=\"B\"> b) Sulfur<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q94\" value=\"C\"> c) Nitrogen<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q94\" value=\"D\"> d) Calcium<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 95 -->\n<div class=\"quiz-question\">\n  <p>95. The nutrient most affected by soil pH changes is:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q95\" value=\"A\"> a) Potassium<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q95\" value=\"B\"> b) Phosphorus<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q95\" value=\"C\"> c) Calcium<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q95\" value=\"D\"> d) Sodium<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 96 -->\n<div class=\"quiz-question\">\n  <p>96. Which method is commonly used for determining soil pH in the lab?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q96\" value=\"A\"> a) Flame photometer<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q96\" value=\"B\"> b) pH meter<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q96\" value=\"C\"> c) Spectrophotometer<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q96\" value=\"D\"> d) Conductivity meter<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 97 -->\n<div class=\"quiz-question\">\n  <p>97. Which soil test primarily determines available phosphorus?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q97\" value=\"A\"> a) Bray&#8217;s method<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q97\" value=\"B\"> b) Kjeldahl method<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q97\" value=\"C\"> c) Flame photometry<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q97\" value=\"D\"> d) Walkley-Black method<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 98 -->\n<div class=\"quiz-question\">\n  <p>98. The recommended soil pH range for most crop growth is:<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q98\" value=\"A\"> a) 4.5\u20135.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q98\" value=\"B\"> b) 5.5\u20137.5<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q98\" value=\"C\"> c) 7.5\u20139.0<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q98\" value=\"D\"> d) 9.0\u201310.0<\/label><\/li>\n  <\/ul>\n<\/div>\n\n<!-- Question 99 -->\n<div class=\"quiz-question\">\n  <p>99. Which practice is best to maintain soil organic matter and fertility?<\/p>\n  <ul class=\"quiz-options\">\n    <li><label><input type=\"radio\" name=\"q99\" value=\"A\"> a) Continuous monocropping<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q99\" value=\"B\"> b) Frequent burning of residues<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q99\" value=\"C\"> c) Incorporation of crop residues and green manuring<\/label><\/li>\n    <li><label><input type=\"radio\" name=\"q99\" value=\"D\"> d) Excessive chemical fertilizer use<\/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 Examination for Agriculturists. In this test, you have to attempt 100 questions from the Soil Science subject&#8230;.<\/p>","protected":false},"author":1,"featured_media":21345,"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":[6,7352,733,649],"tags":[905,904,7329,7330,7327,5003],"class_list":["post-21341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agriculture","category-mock-test","category-quiz","category-soil-science","tag-agriculture-reviewer","tag-licensure-examination-for-agriculturist","tag-mcq","tag-questions","tag-reviewer","tag-soil-science"],"_links":{"self":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/21341","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=21341"}],"version-history":[{"count":10,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/21341\/revisions"}],"predecessor-version":[{"id":21356,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/21341\/revisions\/21356"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/media\/21345"}],"wp:attachment":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/media?parent=21341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/categories?post=21341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/tags?post=21341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}