This quiz works best with JavaScript enabled. Home > Soil Conservation > Soil Conservation – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Conservation Quiz 2 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The dust bowl happened because ..... A) Farmers plowed all the prairie grasses and then a drought happened. B) It was just a drought. C) Because the area should not have been farmed. D) It was a little thing don't worry about it. Show Answer Correct Answer: A) Farmers plowed all the prairie grasses and then a drought happened. 2. This may lead to soil erosion A) Terrace farming. B) Growing of crops. C) Afforestation. D) Deforestation. Show Answer Correct Answer: D) Deforestation. 3. What soil is made of? A) Rocks. B) Organic materials. C) Small rocks and organic matter. D) None of above. Show Answer Correct Answer: C) Small rocks and organic matter. 4. Which soil component has the least capacity for holding water? A) Sand. B) Silt. C) Clay. D) Humus. Show Answer Correct Answer: A) Sand. 5. What type of resource is soil considered? A) Secondary resource. B) Renewable resource. C) Non-renewable resource. D) None of above. Show Answer Correct Answer: C) Non-renewable resource. 6. Which soil is on the bottom? A) Bedrock. B) Topsoil. C) Subsoil. D) Bottom soil. Show Answer Correct Answer: A) Bedrock. 7. Acid rain contains rainwater mixed with sulfuric acid or A) Oxygen. B) Silicon. C) Nitric acid. D) Hydrochloric acid. Show Answer Correct Answer: C) Nitric acid. 8. Most types of plants grow best in soil with a pH of ..... A) Between 1 & 2. B) Between 6 & 8. C) Between 10 & 12. D) Either 1 or 14. Show Answer Correct Answer: B) Between 6 & 8. 9. Overgrazing is responsible for causing: A) Soil depletion. B) Floods. C) Earthquake. D) Landslides. Show Answer Correct Answer: A) Soil depletion. 10. Sandy soil has a lot of ..... A) Rocks and minerals. B) Clay and leaves. C) Organic matter. D) Sea shells. Show Answer Correct Answer: A) Rocks and minerals. 11. The fariming method in which the plant material remains in the field to decay over the winter is called ..... A) Contour. B) No-till. C) Terracing. D) Crop rotation. Show Answer Correct Answer: B) No-till. 12. Which soil texture do scientists believe to be the "ideal soil"? A) 30% Sand, 40% Silt, 30 % Clay. B) 45% Sand, 5% Silt, 50% Clay. C) 40% Sand, 40% Silt, 20% Clay. D) 25% Sand, 25% Silt, 50% Clay. Show Answer Correct Answer: C) 40% Sand, 40% Silt, 20% Clay. 13. If you were to put the 3 types of soil in a tube, which would fall to the bottom first? A) Clay. B) Humus. C) Sand. D) Silt. Show Answer Correct Answer: C) Sand. 14. Over time, a large boulder has gotten smaller and smoother. Why has the rock changed? A) Wind and water have weathered the boulder, wearing away it's surface. B) The boulder wanted to smooth out its wrinkles. C) The boulders layers have cemented together. D) The heat of the Sun smoothed the boulder out. Show Answer Correct Answer: A) Wind and water have weathered the boulder, wearing away it's surface. 15. Soil is mostly conserved by A) Afforestation. B) Deforestation. C) Overgrazing. D) None of above. Show Answer Correct Answer: A) Afforestation. 16. The lowermost layer of the soil is called: A) Weathered Rock. B) Parent Rock. C) Sub Soil. D) None of these. Show Answer Correct Answer: B) Parent Rock. 17. The process that breaks down rocks and other materials into tiny pieces on Earth's surface is called A) Weathering. B) Erosion. C) Soil conservation. D) Decomposition. Show Answer Correct Answer: A) Weathering. 18. Why is soil is a valuable resource? A) Is important to all living things on land. B) Contains sand and gravel. C) Is rich in decomposers. D) Has all three soil horizons. Show Answer Correct Answer: A) Is important to all living things on land. 19. What type of process forms soil? A) Weathering. B) Erosion. C) Deposition. D) Compaction. Show Answer Correct Answer: A) Weathering. 20. Mrs. Bennett has 2 soil samples. One soil sample is darker in color and the other is lighter in color. Which soil sample most likely has more organic matter? A) The lighter soil sample. B) Both have equal amounts. C) The darker soil sample. D) Neither, soil can't have organic matter. Show Answer Correct Answer: C) The darker soil sample. ← PreviousNext →Related QuizzesSoil Conservation Quiz 1Soil Conservation Quiz 3Soil Conservation Quiz 4Soil Conservation Quiz 5Soil Conservation Quiz 6Soil Conservation Quiz 7Soil Conservation Quiz 8Soil Conservation Quiz 9Soil Conservation Quiz 10Soil Conservation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books