This quiz works best with JavaScript enabled. Home > Soil Science > Fundamentals Of Soil Science – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 16 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Caterpillars are the larval form of which of the following insects? A) Moths. B) Beetles. C) Ladybugs. D) Snails. Show Answer Correct Answer: A) Moths. 2. What is humus? A) The bottom layer of soil. B) The largest particle that makes up soil. C) Remains of decayed plants and animals in the soil. D) None of above. Show Answer Correct Answer: C) Remains of decayed plants and animals in the soil. 3. Which of the following is the result of high temperatures? A) Inevitable plant death. B) Necrosis. C) Off-color pigmentation. D) Heat stress. Show Answer Correct Answer: D) Heat stress. 4. We can find rocks at ..... A) Mountain. B) Market. C) Mall. D) School. Show Answer Correct Answer: A) Mountain. 5. Select the definition of soil A) Layers of soil with distinct physical properties in a soil profile. B) Mixture of weathered rock, organic material, water, and air. C) Decomposed organic matter. D) Vertical section showing the soil horizons. Show Answer Correct Answer: B) Mixture of weathered rock, organic material, water, and air. 6. Sand, silt and clay are the components of soil texture and classify as ..... A) Soil particles. B) Soil separates. C) Soil fragments. D) Soil composition. Show Answer Correct Answer: B) Soil separates. 7. This type of soil is grainy, light brown, and would be the size of a basketball in comparison to other soils. A) Sand. B) Clay. C) Humus. D) Loam. Show Answer Correct Answer: A) Sand. 8. What percent of an ideal soil is organic matter? A) 20-30. B) 45. C) 5. D) None of above. Show Answer Correct Answer: C) 5. 9. How long does it take for soil to be created? A) 5 years. B) 1 million years. C) 100-200 years. D) Forever. Show Answer Correct Answer: C) 100-200 years. 10. What is the best soil to grow plants in? A) Sand. B) Silt. C) Loam. D) Clay. Show Answer Correct Answer: C) Loam. 11. A rock formed from fragments of other rocks is a(n) A) Metamorphic Rock. B) Sedimentary Rock. C) Extrusive Rock. D) Igneous Rock. Show Answer Correct Answer: B) Sedimentary Rock. 12. Soil is composed of A) Sand, silt and clay. B) Air and water. C) Humus. D) Gravel. Show Answer Correct Answer: A) Sand, silt and clay. 13. The soil horizons are different from the other based on their A) Chemical and physical features. B) Physical features mainly colour and texture. C) Chemical features only. D) None of above. Show Answer Correct Answer: B) Physical features mainly colour and texture. 14. What kind of soil holds the most water? A) Sandy soil. B) Clay. C) Rocks. D) Plants. Show Answer Correct Answer: B) Clay. 15. Which soil component makes up about 5% of a loamy soil? A) Water. B) Organic Matter. C) Air. D) Minerals. Show Answer Correct Answer: B) Organic Matter. 16. What are the components of soil? A) Dirt, Plants, Minerals, Water. B) Climate and Weather. C) Minerals, rocks, inorganic materials, organic materials, water, air. D) Sun, Grass, Materials, Rock, Sunlight, and Oxygen. Show Answer Correct Answer: C) Minerals, rocks, inorganic materials, organic materials, water, air. 17. Which plant growth regulator is applied to fields of fruit allowing them to ripen at the same time for harvest? A) Abscisic acid. B) Ethylene. C) Auxins. D) Gibberelins. Show Answer Correct Answer: B) Ethylene. 18. Where is the rough endoplasmic reticulum located? A) Cytoplasm. B) Ribosomes. C) Nucleus. D) Orange. Show Answer Correct Answer: A) Cytoplasm. 19. When water dissolves minerals in one layer of soil and moves them to another this is called A) Fertilizing. B) Leaching. C) Chemical erosion. D) Decomposing. Show Answer Correct Answer: B) Leaching. 20. Which property of soil could students determine by rubbing a sample between their fingers? A) The texture of the soil. B) The soil's ability to support life. C) The color of the soil. D) The processes that formed the soil. Show Answer Correct Answer: A) The texture of the soil. ← PreviousNext →Related 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 9Fundamentals Of Soil Science Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books