This quiz works best with JavaScript enabled. Home > Soil Science > Chemistry > Soil Chemistry – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Chemistry Quiz 5 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The soils which are suitable for growing cereals like wheat and gram A) Sandy and clayey soil. B) Loamy and Sandy soil. C) Clayey and loamy soil. D) None of above. Show Answer Correct Answer: C) Clayey and loamy soil. 2. In order to increase water retention, you should add the following to soil: A) Organic matter. B) Loose gravel. C) Nitrogen pellets. D) Coarse sand. Show Answer Correct Answer: A) Organic matter. 3. In soil, water will only move ..... A) By being pulled by dry soil. B) By being pushed by gravitational water. C) From moist to dry soil. D) None of above. Show Answer Correct Answer: C) From moist to dry soil. 4. Nitrification happens in the ..... A) Air. B) Soil. C) Ground Water. D) Plants. Show Answer Correct Answer: B) Soil. 5. Which of these particles in soil has the most water retention? A) Clay. B) Gravel. C) Silt. D) Sand. Show Answer Correct Answer: A) Clay. 6. Which type of soil has medium sized particles? A) Sand. B) Silt. C) Clay. D) None of above. Show Answer Correct Answer: B) Silt. 7. If water runs out of the bottom of the pot this is an example of ..... A) Available water. B) Hygroscopic water. C) Gravitational water. D) None of above. Show Answer Correct Answer: C) Gravitational water. 8. Plants cannot penetrate through which layer? A) A-Horizon. B) Bedrock. C) C-Horizon. D) E-Horizon. Show Answer Correct Answer: C) C-Horizon. 9. Properties of soil can be observed and measured. Which is a property of soil? A) Texture. B) Streak. C) Luster. D) Size. Show Answer Correct Answer: A) Texture. 10. Soil is essential for A) Planting trees. B) Agriculture. C) Growth of plants. D) None of above. Show Answer Correct Answer: B) Agriculture. 11. 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. 12. The best topsoil for growing plants is A) Sand. B) Clay. C) Loam. D) None of above. Show Answer Correct Answer: C) Loam. 13. Soil is mostly made of ..... A) Mineral particles. B) Organic matter. C) Water. D) Air. Show Answer Correct Answer: A) Mineral particles. 14. What happens when organisms die and decay? A) Their bodies are lifted up. B) Their nitrogen returns to the soil. C) They keep their nitrogen. D) They stay on earth forever. Show Answer Correct Answer: B) Their nitrogen returns to the soil. 15. Most abundant soil group in the Philippines. A) Ultisols. B) Entisol. C) Alfisols. D) Spodosols. Show Answer Correct Answer: A) Ultisols. 16. 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. 17. O-Horizon is how much thick A) 3 Inch. B) 4 Inch. C) 10 Inch. D) 1 Inch. Show Answer Correct Answer: D) 1 Inch. 18. 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. 19. Organisms that aerate the soil. A) Worm. B) Ants. C) Fungi. D) None of above. Show Answer Correct Answer: B) Ants. 20. 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. ← PreviousNext →Related QuizzesSoil Science QuizzesSoil Chemistry Quiz 1Soil Chemistry Quiz 2Soil Chemistry Quiz 3Soil Chemistry Quiz 4Soil Chemistry Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books