This quiz works best with JavaScript enabled. Home > Agriculture > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 10 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Students poured 400 mL of water through a soil sample. They collected and measured the water that drained out of the soil. The water collected had a volume of 210 mL. How much water did the soil retain? A) 200mL. B) 210mL. C) 190mL. D) 210mL. Show Answer Correct Answer: C) 190mL. 2. Washing out a plastic ziploc bag and using it again is known as- A) Recycling glass. B) Reducing the amount of water used. C) Reusing an object. D) Recycling plastic. Show Answer Correct Answer: C) Reusing an object. 3. Which is NOT a layer of soil? A) Subsoil. B) Bedrock. C) Undersoil. D) Topsoil. Show Answer Correct Answer: C) Undersoil. 4. What is word fits w/ the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals A) Humus. B) Decomposers. C) Subsoil. D) Loam. Show Answer Correct Answer: B) Decomposers. 5. The texture of soil depends on A) Particle size. B) Soil color. C) Soil mass. D) How much water it can retain. Show Answer Correct Answer: A) Particle size. 6. A substance is composed of organic material such as dead plants. To which category does the substance belong? A) Ore. B) Mineral. C) Soil. D) Magma. Show Answer Correct Answer: C) Soil. 7. Which soil can be compacted to higher density? A) Poorly graded sand. B) Well graded very gravelly SAND. C) Uniform silty soil. D) Clay of high plasticity. Show Answer Correct Answer: B) Well graded very gravelly SAND. 8. Layered rocks that are weathered by wind and water are called ..... A) Metamorphic rocks. B) Sedimentary rocks. C) Igneous rocks. D) Magma rocks. Show Answer Correct Answer: B) Sedimentary rocks. 9. How does soil form? A) Soil forms as rock is broken down by weathering and mixed with other materials on the surface. B) Soil forms when someone takes a shovel and breaks rocks, and then mixes it with dirt. C) Soil forms when an you throw rocks and dirt into a pond. D) Soil forms when you mix water and rocks together, then add air. Show Answer Correct Answer: A) Soil forms as rock is broken down by weathering and mixed with other materials on the surface. 10. In which layer of soil do plant roots grow? A) Subsoil. B) Topsoil. C) Humus. D) Bedrock. Show Answer Correct Answer: B) Topsoil. 11. If you dug up some soil and put it in a warm place what would happen to the dirt? A) The water would evaporate from the soil. B) It would become rocks. C) It would become humus. D) It would become clay. Show Answer Correct Answer: A) The water would evaporate from the soil. 12. Which of these is the correct definition for the term sustainable? A) The responsible development and management of areas. B) Improvement of a run down area. C) Meeting the needs of people without damaging the ecological, economic, or social components of the environment. D) People take responsibility for improving their living conditions. Show Answer Correct Answer: C) Meeting the needs of people without damaging the ecological, economic, or social components of the environment. 13. Breaking down of rocks is called ..... A) Weathering. B) Soil erosion. C) Photosynthesis. D) None of above. Show Answer Correct Answer: A) Weathering. 14. What term refers to the living organisms in soil? A) PH. B) Topography. C) Parent material. D) Biota. Show Answer Correct Answer: D) Biota. 15. Water can drain easily through - A) Sandy soil. B) Loamy soil. C) Clayey soil. D) None of above. Show Answer Correct Answer: A) Sandy soil. 16. Which soil has the smallest particles? A) Clay. B) Loam. C) Sand. D) Silt. Show Answer Correct Answer: A) Clay. 17. Which of the following items is a primary ingredient of humus? A) Metals. B) Minerals. C) Rocks from Earth's crust. D) Dead plant material. Show Answer Correct Answer: D) Dead plant material. 18. What are plants? A) Living things like radishes, trees, roses, and grass. B) Rocks in soil. C) Animals. D) None of above. Show Answer Correct Answer: A) Living things like radishes, trees, roses, and grass. 19. How does soil play an important role to life on Earth? A) The soil helps clean our water. B) Plants get nutrients from soil to grow. C) Soil releases gas such as carbon dioxide into the air. D) All of the above. Show Answer Correct Answer: D) All of the above. 20. Which particle is the most porous and allows for the most water to travel between them? A) Silt. B) Sand. C) Clay. D) Loam. Show Answer Correct Answer: B) Sand. 21. The two main factors that determine the rate of weathering are the TYPE of rock and ..... A) Weight of rock. B) Climate. C) Music. D) Size of rock. Show Answer Correct Answer: B) Climate. 22. What is the total value of crops exported from South Dakota annually? A) $ 225 billion. B) $ 431.2 billion. C) $ 1.4 billion. D) $ 5 billion. Show Answer Correct Answer: C) $ 1.4 billion. 23. Why is soil important to living things? A) Forms part of the earth where animals live. B) Provides the necessary nutrients needed by plants. C) Serves as a place where people live. D) All of the above. Show Answer Correct Answer: D) All of the above. 24. Soil is composed of three particle sizes. Which answer shows the arrangement from largest to smallest? A) Sand, Silt, Clay. B) Clay, Silt, Sand. C) Sandy, Clay, Silt. D) Silt, Sand, Clay. Show Answer Correct Answer: A) Sand, Silt, Clay. 25. Based on the virtual museum experiment, which type of soil retained the most water? A) Sand. B) Gravel. C) Clay. D) None of above. Show Answer Correct Answer: C) Clay. 26. Which of the following is a term for heterosis? A) Homozygous. B) Heterosis. C) Heredity. D) Hybrid vigor. Show Answer Correct Answer: D) Hybrid vigor. 27. Place the following layers in order from top to bottom:bedrock, topsoil, subsoil, organic, parent material. A) Topsoil, Organic, Subsoil, Parent Material, Bedrock. B) Organic, Topsoil, Parent Material, Subsoil, Bedrock. C) Organic, Topsoil, Subsoil, Parent Material, Bedrock. D) Topsoil, Organic, Parent Material, Subsoil, Bedrock. Show Answer Correct Answer: C) Organic, Topsoil, Subsoil, Parent Material, Bedrock. 28. Which particle holds the least amount of water? A) Clay. B) Silt. C) Sand. D) None of above. Show Answer Correct Answer: C) Sand. 29. Caterpillars are the larval form of which of the following insects? A) Ladybugs. B) Beetles. C) Snails. D) Moths. Show Answer Correct Answer: D) Moths. 30. Which of the following is the result of high temperatures? A) Necrosis. B) Heat stress. C) Off-color pigmentation. D) Inevitable plant death. Show Answer Correct Answer: B) Heat stress. ← PreviousNext →Related QuizzesSoil Science QuizzesAgriculture 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books