This quiz works best with JavaScript enabled. Home > Agriculture > Soil Science > Chemistry > Soil Chemistry – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Chemistry Quiz 4 (13 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of texture does clay have? A) Gritty. B) Shiny, smooth and sticky. C) Flaky and dark. D) None of above. Show Answer Correct Answer: B) Shiny, smooth and sticky. 2. The best topsoil for growing plants is A) Sand. B) Clay. C) Loam. D) None of above. Show Answer Correct Answer: C) Loam. 3. Soil is mostly made of ..... A) Water. B) Air. C) Organic matter. D) Mineral particles. Show Answer Correct Answer: D) Mineral particles. 4. What happens when organisms die and decay? A) They stay on earth forever. B) They keep their nitrogen. C) Their nitrogen returns to the soil. D) Their bodies are lifted up. Show Answer Correct Answer: C) Their nitrogen returns to the soil. 5. Most abundant soil group in the Philippines. A) Spodosols. B) Ultisols. C) Entisol. D) Alfisols. Show Answer Correct Answer: B) Ultisols. 6. Which soil retains the most amount of water A) Silt Soil. B) Loamy Soil. C) Sandy soil. D) Clayey Soil. Show Answer Correct Answer: D) Clayey Soil. 7. O-Horizon is how much thick A) 1 Inch. B) 3 Inch. C) 4 Inch. D) 10 Inch. Show Answer Correct Answer: A) 1 Inch. 8. Percolation rate of soil is least in A) Sandy Soil. B) Clayey Soil. C) Loamy Soil. D) None of these. Show Answer Correct Answer: B) Clayey Soil. 9. Organisms that aerate the soil. A) Worm. B) Ants. C) Fungi. D) None of above. Show Answer Correct Answer: B) Ants. 10. What is the best characteristics of soil. A) Soil is a mixture of wind and waves. B) Soil has not living organisms. C) Soil contains particles of water and air. D) None of above. Show Answer Correct Answer: C) Soil contains particles of water and air. 11. Soil is made up of three types of particles called ..... A) Loam, humus, sand. B) Sand, silt, clay. C) Humus, topsoil, clay. D) Loam, topsoil, humus. Show Answer Correct Answer: B) Sand, silt, clay. 12. Gravitational flow occurs more rapidly in A) Fine particle soils. B) Coarse particle soil. C) All soils. D) None of above. Show Answer Correct Answer: B) Coarse particle soil. 13. In addition to rocks particles the soil contains A) Minerals. B) Organic matter, minerals, air And water. C) Organs. D) Crops. Show Answer Correct Answer: B) Organic matter, minerals, air And water. ← PreviousRelated QuizzesSoil Science QuizzesAgriculture QuizzesSoil Chemistry Quiz 1Soil Chemistry Quiz 2Soil Chemistry Quiz 3 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books