This quiz works best with JavaScript enabled. Home > Soil Science > Soil Chemistry – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Chemistry Quiz 3 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which soil layer is made up of small lumps of rocks? A) A-Horizon. B) B-Horizon. C) C-Horizon. D) Bedrock. Show Answer Correct Answer: C) C-Horizon. 2. What is the property of water that allows it to stick to other water molecules? A) Capillary Action. B) Solubility. C) Adhesion. D) Cohesion. Show Answer Correct Answer: D) Cohesion. 3. Which one of these is NOT a macro-nutrient A) Nitrogen. B) Calcium. C) Boron. D) Potassium. Show Answer Correct Answer: C) Boron. 4. Which of the following has the biggest soil particles A) Silt Soil. B) Loamy Soil. C) Sandy soil. D) Clayey soil. Show Answer Correct Answer: C) Sandy soil. 5. The deposition of leached material in the lower layers of soil. A) Illuviation. B) Percolation. C) Leaching. D) Aeration. Show Answer Correct Answer: A) Illuviation. 6. If a soil or solution is acidic then it is A) Above 8 PH. B) Near 7 PH. C) Below 6 PH. D) None of above. Show Answer Correct Answer: C) Below 6 PH. 7. The removal of land surface by ..... A) Water. B) Crops. C) Soil. D) Moisture. Show Answer Correct Answer: A) Water. 8. Most soil group in Ilocos Sur A) Ultisol. B) Inceptisol. C) Entisol. D) Oxisol. Show Answer Correct Answer: C) Entisol. 9. Gravitational water moves more rapidly due to A) Small pore space. B) Small particle size. C) Large pore space. D) None of above. Show Answer Correct Answer: C) Large pore space. 10. Infiltration is ..... A) Waters ability to enter the surface layer of the soil. B) An inverted filtration occurrence. C) The ability to maintain correct water balance. D) Liquid slowly passing through a filter. Show Answer Correct Answer: A) Waters ability to enter the surface layer of the soil. 11. Soil is known for its importance in different aspects except: A) The production of food. B) Maintaining the balance of carbon, nitrogen, and phosphorus. C) For the construction of building materials. D) None of the above. Show Answer Correct Answer: D) None of the above. 12. What is the property of water that allows it to stick to other surfaces? A) Surface tension. B) Cohesion. C) Adhesion. D) Solubility. Show Answer Correct Answer: C) Adhesion. 13. - is important for the life of earth A) Percolation. B) Water. C) Soil. D) Plant. Show Answer Correct Answer: C) Soil. 14. ..... from the atmosphere that are converted to nitrates are eventually deposited in soil. A) Sulfur dioxide. B) Particulate lead. C) Nitrogen oxides. D) Sulfur oxide. Show Answer Correct Answer: C) Nitrogen oxides. 15. Which soil horizon contains humus? A) A-Horizon. B) B-Horizon. C) C-Horizon. D) Bedrock. Show Answer Correct Answer: A) A-Horizon. 16. The layer which is generally harder and more compact A) Bedrock. B) A - horizon. C) C - Horizon. D) B - Horizon. Show Answer Correct Answer: D) B - Horizon. 17. The ..... is the aqueous portion of soil that contains dissolved matter from the chemical and biochemical processes in soil and from the exchange with the hydrosphere and biosphere. A) Soil solution. B) Organic matter. C) Transpiration. D) Desertification. Show Answer Correct Answer: A) Soil solution. 18. The bits of decayed living organisms in the soil are called A) Mineral nutrients. B) Humus. C) Compost. D) All of the above. Show Answer Correct Answer: B) Humus. 19. It is made up of small particles: A) Loamy Soil. B) Sandy Soil. C) Clayey Soil. D) None of above. Show Answer Correct Answer: C) Clayey Soil. 20. If one nutrient is absent or toxic then what could happen to a plant A) Alter the cellular structure of the plant resulting in defects or deficiencies. B) Nothing will happen to the plant. C) Possible create a new variation of that plant due to the plant stress. D) The plant could join a union and protest the maltreatment. Show Answer Correct Answer: A) Alter the cellular structure of the plant resulting in defects or deficiencies. ← PreviousNext →Related QuizzesSoil Chemistry Quiz 1Soil Chemistry Quiz 2Soil Chemistry Quiz 4Soil Chemistry Quiz 5Soil Chemistry Quiz 6Fundamentals Of Soil Science QuizSoil Science Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books