This quiz works best with JavaScript enabled. Home > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 21 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The R horizon is also know as. A) Partly Weathered rock. B) Topsoil. C) Subsoil. D) Bedrock. Show Answer Correct Answer: D) Bedrock. 2. Why is soil an important natural resource? A) Soil is used to make buildings. B) Soil can grow crops. C) Soil comes from bedrock. D) Soil is full of mircobes. Show Answer Correct Answer: B) Soil can grow crops. 3. Where do plants get minerals from A) Soil. B) Rain. C) Sun. D) Animals. Show Answer Correct Answer: A) Soil. 4. What is a solution to stop wind erosion on a farmer's field? A) Plow up all of the plants. B) Build a pond. C) Plant trees and shrubs on the edge. D) None of above. Show Answer Correct Answer: C) Plant trees and shrubs on the edge. 5. What natural resource has minerals from weathered rocks and decomposing plant and animal remains? A) Fresh water. B) Soil. C) Animals. D) Plants. Show Answer Correct Answer: B) Soil. 6. The science of classifying and identifying organisms is: A) Science. B) Anatomy. C) Taxonomy. D) None of above. Show Answer Correct Answer: C) Taxonomy. 7. Name the layer that is between sand and clay A) Silt. B) Humus. C) Gravel. D) None of the above. Show Answer Correct Answer: A) Silt. 8. Which type of soil do you usually expect if the community is along the seashore? A) Loam. B) Clay. C) Sand. D) None of above. Show Answer Correct Answer: C) Sand. 9. How do decomposers work hand-in-hand with humus? A) By removing gravel and sand from soil. B) By breaking down gravel into silt. C) By eating animals that may harm the soil. D) By breaking down the remains of dead plant and animal matter. Show Answer Correct Answer: D) By breaking down the remains of dead plant and animal matter. 10. Which of the following is the most common plant part used to identify plants? A) Roots. B) Stems. C) Flowers. D) Leaves. Show Answer Correct Answer: D) Leaves. 11. How do plants help soil? A) The roots help the soil stay in place. This helps the soil not erode as fast. B) Plants feed the soil. C) Plants help soil erosion happen. D) All of the above. Show Answer Correct Answer: A) The roots help the soil stay in place. This helps the soil not erode as fast. 12. The layer of soil that contains the most organic material is which horizon? A) A. B) B. C) C. D) D. Show Answer Correct Answer: A) A. 13. Which of the following are the macronutrients that can be absorbed atmospherically? A) Phosphorus, Nitrogen and Carbon. B) Carbon, Nitrogen, Potassium. C) Nitrogen, Oxygen and Carbon. D) Carbon, Oxygen, Hydrogen. Show Answer Correct Answer: D) Carbon, Oxygen, Hydrogen. 14. What is the soil that is good for making pots? A) Loam. B) Sand. C) Clay. D) None of above. Show Answer Correct Answer: C) Clay. 15. What is the main purpose of microbes in the soil? A) To release the nutrients in rocks. B) To cause disease. C) To feed animals. D) None of above. Show Answer Correct Answer: A) To release the nutrients in rocks. 16. One property of soil is it's ..... A) Worms. B) Temperature. C) Name. D) Texture. Show Answer Correct Answer: D) Texture. 17. About 2% of American homes use geothermal heat pumps. What percent of Swedish homes use this technology? A) 10%. B) 20%. C) 30%. D) 40%. Show Answer Correct Answer: C) 30%. 18. How do organisms affect soils? A) Soil get eaten by animals. B) Chemically alters and physically mixes soils. C) Plants grow through the soil. D) Organism don't affect the soils. Show Answer Correct Answer: B) Chemically alters and physically mixes soils. 19. The MAIN thing Decomposers do for the soil is the following: A) Store moisture. B) Burrow deep in the soil. C) Make space for air and water. D) Break down and digest dead organisms. Show Answer Correct Answer: D) Break down and digest dead organisms. 20. Plants get the minerals they need to flourish from: A) Sun. B) Rain. C) Clean air and carbon dioxide. D) Soil. Show Answer Correct Answer: D) Soil. ← PreviousNext →Related QuizzesSoil Science QuizzesFundamentals Of Soil Science Quiz 1Fundamentals Of Soil Science Quiz 2Fundamentals Of Soil Science Quiz 3Fundamentals Of Soil Science Quiz 4Fundamentals Of Soil Science Quiz 5Fundamentals Of Soil Science Quiz 6Fundamentals Of Soil Science Quiz 7Fundamentals Of Soil Science Quiz 8Fundamentals Of Soil Science Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books