This quiz works best with JavaScript enabled. Home > Agriculture > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 11 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. We can find rocks at ..... A) Mountain. B) Market. C) Mall. D) School. Show Answer Correct Answer: A) Mountain. 2. 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. 3. Sand, silt and clay are the components of soil texture and classify as ..... A) Soil separates. B) Soil fragments. C) Soil composition. D) Soil particles. Show Answer Correct Answer: A) Soil separates. 4. 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. 5. 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. 6. How long does it take for soil to be created? A) 5 years. B) 1 million years. C) Forever. D) 100-200 years. Show Answer Correct Answer: D) 100-200 years. 7. What is the best soil to grow plants in? A) Sand. B) Silt. C) Loam. D) Clay. Show Answer Correct Answer: C) Loam. 8. A rock formed from fragments of other rocks is a(n) A) Sedimentary Rock. B) Extrusive Rock. C) Metamorphic Rock. D) Igneous Rock. Show Answer Correct Answer: A) Sedimentary Rock. 9. 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. 10. 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. 11. What kind of soil holds the most water? A) Sandy soil. B) Clay. C) Rocks. D) Plants. Show Answer Correct Answer: B) Clay. 12. Which soil component makes up about 5% of a loamy soil? A) Organic Matter. B) Water. C) Minerals. D) Air. Show Answer Correct Answer: A) Organic Matter. 13. 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. 14. Which plant growth regulator is applied to fields of fruit allowing them to ripen at the same time for harvest? A) Ethylene. B) Auxins. C) Gibberelins. D) Abscisic acid. Show Answer Correct Answer: A) Ethylene. 15. Where is the rough endoplasmic reticulum located? A) Ribosomes. B) Nucleus. C) Orange. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 16. When water dissolves minerals in one layer of soil and moves them to another this is called A) Decomposing. B) Fertilizing. C) Leaching. D) Chemical erosion. Show Answer Correct Answer: C) Leaching. 17. Which property of soil could students determine by rubbing a sample between their fingers? A) The texture of the soil. B) The color of the soil. C) The soil's ability to support life. D) The processes that formed the soil. Show Answer Correct Answer: A) The texture of the soil. 18. Calculate the gravimetric moisture content of the soil sample if it's fresh weight (FW) is 25 grams and its oven dried weight (ODW) is 20 grams. A) 20%. B) 30%. C) 15%. D) 25%. Show Answer Correct Answer: D) 25%. 19. Peter wants to grow some bell peppers in his garden. Peter tests the pH of the soil and finds that the plants will thrive in the soil. What was the most likely pH reading of the soil?4 A) 6. B) 3. C) 1. D) 14. Show Answer Correct Answer: A) 6. 20. Which soil has the largest particles? A) Clay. B) Sand. C) Loam. D) Silt. Show Answer Correct Answer: B) Sand. 21. What are the categories of soil composition?? A) Organic and Inorganic matter. B) Air. C) Water and minerals. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. Which plant can be planted in sand? A) Mango tree. B) Coconut tree. C) Rose plant. D) Paddy plant. Show Answer Correct Answer: B) Coconut tree. 23. What happens to soil if no plants are in them and it rains? A) Soil erosion. B) Soil absorbs the water. C) Soil becomes mud. D) Soil becomes sand. Show Answer Correct Answer: A) Soil erosion. 24. Which is the top layer of soil? A) Parent Material. B) Humus. C) Loam. D) Bedrock. Show Answer Correct Answer: B) Humus. 25. What are the smallest particles that make up soil called? A) Sand. B) Bedrock. C) Clay. D) Humus. Show Answer Correct Answer: C) Clay. 26. It is important for soil to retain water to withstand A) Weathering. B) Help plants to grow. C) Keep it from being dry. D) None of above. Show Answer Correct Answer: B) Help plants to grow. 27. Sandy is good for farming. A) False. B) Burgers. C) True. D) Ham. Show Answer Correct Answer: A) False. 28. How can a large rock become a part of soil? A) Break the rock into tiny pieces. B) Bury the rock in the ground. C) Pile the rock with other rocks. D) Melt the rock and let it cool down. Show Answer Correct Answer: A) Break the rock into tiny pieces. 29. What types of crops account for 83 percent of the total United States' economic value of crops? A) Fruits and nuts. B) Commercial vegetables. C) Field and miscellaneous crops. D) Forage crops. Show Answer Correct Answer: C) Field and miscellaneous crops. 30. There are ..... types of soil A) 4. B) 5. C) 3. D) None of above. Show Answer Correct Answer: C) 3. ← 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