This quiz works best with JavaScript enabled. Home > Soil Conservation > Soil Conservation – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Conservation Quiz 7 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why do contour farming and terracing slow erosion? A) Their parallel rows slow the velocity of falling water. B) It provides more space and time for water to percolate instead of running off. C) They designed to prevent or slow wind erosion. D) They are used in arid areas to decrease salination. Show Answer Correct Answer: B) It provides more space and time for water to percolate instead of running off. 2. Decay organic material in soil is called? A) Litter. B) Humus. C) Silt. D) Clay. Show Answer Correct Answer: B) Humus. 3. How can farmers prevent soil erosion? A) Cover their crops with a tarp. B) Water the soil everyday in order to weigh it down. C) Plant crops to hold the soil in place. D) Cut down all of the trees and crops. Show Answer Correct Answer: C) Plant crops to hold the soil in place. 4. How much time is taken to form 1 cm of soil? A) 10+ years. B) 5 years. C) 100s of year. D) Few months. Show Answer Correct Answer: C) 100s of year. 5. What is the indirect source of most of Earth's energy? A) Solar power. B) Geothermal energy. C) Hydroelectricity. D) Biomass. Show Answer Correct Answer: A) Solar power. 6. Which horizon is bedrock? A) Horizon A. B) Horizon C. C) Horizon B. D) Horizon D or R. Show Answer Correct Answer: D) Horizon D or R. 7. Water seeps down into the crack of a rock, freezes, expands, and weathers the rock. This is an example of ..... A) Frost wedging. B) Abrasion. C) Wind erosion. D) Deposition. Show Answer Correct Answer: A) Frost wedging. 8. The moisture of soil can be retained by the process of: A) Contour Barriers. B) Mulching. C) Rock Dams. D) Planting grass. Show Answer Correct Answer: B) Mulching. 9. Example of a plant dispersed by wind A) Coconut. B) Cotton. C) Rose. D) None of above. Show Answer Correct Answer: B) Cotton. 10. The process by which rock is broken down intosmaller pieces. A) Erosion. B) Weathering. C) Deposition. D) None of above. Show Answer Correct Answer: B) Weathering. 11. What is a main crop grown in the United States? A) Pasture for cattle. B) Pigs. C) Chickens. D) Soil. Show Answer Correct Answer: A) Pasture for cattle. 12. Most plants cannot grow well in soil with too much clay because: A) It doesn't hold enough water. B) It holds too much water. C) It is too sandy. D) It doesn't have enough nutrients. Show Answer Correct Answer: B) It holds too much water. 13. Which of the following would NOT be consideredorganic mateial in the soil? A) Earthworms. B) Minerals. C) Animal matter. D) Dead plant matter. Show Answer Correct Answer: A) Earthworms. 14. Cutting down of trees ..... A) Afforestation. B) Forestation. C) Deforestation. D) Conservation. Show Answer Correct Answer: C) Deforestation. 15. Plants and trees hold soil together with the help of their A) Leaves. B) Stem. C) Roots. D) None of the above. Show Answer Correct Answer: C) Roots. 16. What has the smallest particles in soil? A) Sand. B) Clay. C) Silt. D) Loam. Show Answer Correct Answer: B) Clay. 17. What term describes the management of soil to prevent its destruction? A) Soil exhaustion. B) Soil decomposition. C) Soil conservation. D) Soil fertility. Show Answer Correct Answer: C) Soil conservation. 18. Which of the following describes the size and proportions of particles in soil? A) Soil texture. B) Soil fertility. C) Soil structure. D) Soil arrangement. Show Answer Correct Answer: A) Soil texture. 19. Which of the following is NOT an ingredient of loam A) Clay. B) Sand. C) Shale. D) Silt. Show Answer Correct Answer: C) Shale. 20. The continuous process in which rocks change from one kind into another is called A) Rock cycle. B) Sedimentary rock. C) Metamorphic rock. D) Circle of life. Show Answer Correct Answer: A) Rock cycle. ← PreviousNext →Related QuizzesSoil Conservation Quiz 1Soil Conservation Quiz 2Soil Conservation Quiz 3Soil Conservation Quiz 4Soil Conservation Quiz 5Soil Conservation Quiz 6Soil Conservation Quiz 8Soil Conservation Quiz 9Soil Conservation Quiz 10Soil Conservation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books