This quiz works best with JavaScript enabled. Home > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 20 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which process allows plants to make their own food and convert it to energy? A) Nitrogen cycle. B) Respiration. C) Phototropism. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 2. Which of the following is NOT an element of erosion? A) Water. B) Wind. C) Chemical. D) Electrical Current. Show Answer Correct Answer: D) Electrical Current. 3. George Washington Carver was a professor of agriculture. He is famous for his studies of .....? A) Onions. B) Corn. C) Soy beans. D) Peanuts. Show Answer Correct Answer: D) Peanuts. 4. ASSET QUESTIONIn which group will all the three items dissolve after mixing with water A) Salt, ice, clay. B) Sand, sugar, oil. C) Salt, ice cube, sugar. D) Ice cube, sugar, oil. Show Answer Correct Answer: C) Salt, ice cube, sugar. 5. An organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material is a ..... A) Decomposer. B) Burrower. C) Humus source. D) None of above. Show Answer Correct Answer: A) Decomposer. 6. The seed is made up of which of the following parts? A) Seed coat. B) Cotyledon. C) Embryo. D) All of the above. Show Answer Correct Answer: D) All of the above. 7. A type of soil structure that is cube-like and common in B horizon especially in the humid regions. A) Prismlike. B) Platelike. C) Spheroidal. D) Blocklike. Show Answer Correct Answer: D) Blocklike. 8. Why is topsoil darker than all other levels of soil? A) It contains all the darker colored minerals. B) It contains volcanic rock. C) It contains more organic matter. D) It contains bits of burned trees. Show Answer Correct Answer: C) It contains more organic matter. 9. Primary mineral is formed from the crystallization of magma. Which of the following is Not a type of primary minerals? A) Quartz. B) Feldspar. C) Kaolinite. D) Hornblende. Show Answer Correct Answer: C) Kaolinite. 10. Which Method involves taking parts (leaves, stem, etc) and placing them in growing media to develop into new plants? A) Cuttings. B) Division. C) Tissue Culture. D) Grafting. Show Answer Correct Answer: A) Cuttings. 11. Which of the following is the most important soil formation factor A) Time. B) Climate. C) Slope. D) Organisms. Show Answer Correct Answer: B) Climate. 12. Which of the following terms best describes a collection of many techniques currently used to genetically improve plants? A) Agriculture biotechnology. B) Micro-propagation. C) Genetic engineering. D) Conventional genetics. Show Answer Correct Answer: A) Agriculture biotechnology. 13. Which soil has high nutrient content? A) Clayey soil. B) Sandy soil. C) Silty soil. D) Loamy soil. Show Answer Correct Answer: D) Loamy soil. 14. The division bryophyta includes which of the following types of plans? A) Mosses. B) Ferns. C) Fungi. D) Flowering plants. Show Answer Correct Answer: A) Mosses. 15. Which type of soil is characterized as having the finest particles holding greater amount of water? A) Loam. B) Clay. C) Sand. D) None of above. Show Answer Correct Answer: B) Clay. 16. When grafting the part that becomes the stem and leaves is the ..... A) Union. B) Scion. C) Style. D) Ovary. Show Answer Correct Answer: B) Scion. 17. Which of the following soil types has the largest particles and allows water to flow through it easily? A) Clay. B) Silt. C) Loam. D) Sand. Show Answer Correct Answer: D) Sand. 18. Which best describes forest soil? A) More clay in the humus layer than in deeper layers. B) More rock fragments in the humus layer than in deeper layers. C) More sand-sized particles in the humus layer than in deeper layers. D) More organic matter in the humus layer than in deeper layers. Show Answer Correct Answer: D) More organic matter in the humus layer than in deeper layers. 19. Different types of soil contain different amount of: A) Humus. B) Living things. C) Pieces of rocks. D) None of above. Show Answer Correct Answer: A) Humus. 20. The five soil forming factors ..... to determine the soil characteristics. A) Interacts. B) Act independently. C) Act solely. D) All of the above. Show Answer Correct Answer: A) Interacts. ← 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