This quiz works best with JavaScript enabled. Home > Agriculture > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 15 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What composes the organic matter in soil? A) Decomposed remains of once living things. B) Liquids. C) Pore spaces. D) Pieces of rock that has been split apart. Show Answer Correct Answer: A) Decomposed remains of once living things. 2. Below the C horizon is A) Topsoil. B) Clay. C) Rock. D) Humus. Show Answer Correct Answer: C) Rock. 3. What exactly is bedrock? A) Any organic rock or mineral. B) Rock that has not been weathered. C) Rock that lies underneath water. D) Especially soft rock. Show Answer Correct Answer: B) Rock that has not been weathered. 4. Which soil do plants grow best in? A) Clay. B) Silt. C) Loam. D) Sand. Show Answer Correct Answer: C) Loam. 5. Which of the following is a quantitative trait? A) Flower color. B) Stem length. C) Seed yield. D) Pod shape. Show Answer Correct Answer: C) Seed yield. 6. At the same level of organic matter, evaluate which are the highest water holding capacity? A) Loamy sand. B) Clay loam. C) Clay. D) Sandy loam. Show Answer Correct Answer: B) Clay loam. 7. There are different types of soil look, smell, and feel different. Why soil have different color. A) We paint them. B) We add color in it. C) They come from different rocks and different places. D) None of above. Show Answer Correct Answer: C) They come from different rocks and different places. 8. Which vegetable is a major food crop in Rhode Island? A) Corn. B) Pumpkins. C) Potatoes. D) Cabbage. Show Answer Correct Answer: B) Pumpkins. 9. Subsoil is made mostly of A) Parent material. B) Humus. C) Clay and silt. D) Bedrock. Show Answer Correct Answer: C) Clay and silt. 10. Soil is a mixture of weathered rock, mineral fragments, water, air and A) Sand. B) Decayed organic matter. C) Moss. D) Clay. Show Answer Correct Answer: B) Decayed organic matter. 11. ..... is the process of rocks breaking down and becoming other rocks. A) Erosion. B) Water cycle. C) Rock cycle. D) Weathering. Show Answer Correct Answer: C) Rock cycle. 12. The ..... ..... is what we call all three horizons and the bedrock together. A) Sub soil. B) Top soil. C) Loam soil. D) Soil layers. Show Answer Correct Answer: D) Soil layers. 13. What layer of soil is the best for growing plants? A) Bedrock. B) Horizon D. C) Clay. D) Topsoil. Show Answer Correct Answer: D) Topsoil. 14. This generally has the highest cation exchange capacity? (CEC) A) Clay. B) Silt. C) Sand. D) Loam. Show Answer Correct Answer: A) Clay. 15. How many farms in Massachusetts produce organic crops? A) 72. B) 20. C) More than 1, 000. D) More than 300. Show Answer Correct Answer: D) More than 300. 16. If you want to make your soil better for plant growth what can you do to fix the soil? A) Add subsoil. B) Take away air. C) Add nutrients. D) Add clay. Show Answer Correct Answer: C) Add nutrients. 17. There are approximately how many different kinds of soil in the United States? A) 100 types. B) 5 types. C) 10 types. D) 1, 000 types. Show Answer Correct Answer: B) 5 types. 18. Conservation plowing is ..... A) Not plowing the soil before planting new crops. B) Plowing the soil 8-12 inches deep to allow air and water to penetrate. C) When strips of legumes and strips of row crops are planted. D) None of above. Show Answer Correct Answer: A) Not plowing the soil before planting new crops. 19. Which primary plant nutrient promotes strong root growth in young seedlings? A) Phosphorus. B) Iron. C) Potassium. D) Nitrogen. Show Answer Correct Answer: A) Phosphorus. 20. Why are good conservation practices important for lumber companies to follow? A) It increases soil erosion. B) It adds groundwater. C) The soil is shaded. D) It decreases soil erosion. Show Answer Correct Answer: D) It decreases soil erosion. 21. Organic matter is formed when ..... A) Dead animals. B) Rotten plants. C) Decompostion of the remains of plant and animal remains. D) Plants and animals. Show Answer Correct Answer: C) Decompostion of the remains of plant and animal remains. 22. How do you determine the texture of soil? A) Rub particles between fingers. B) Taste particles. C) Use a spring scale. D) Observe color of particles. Show Answer Correct Answer: A) Rub particles between fingers. 23. What is the total value of the food crops exported annually from Vermont? A) $ 3.8 million. B) $ 1 million. C) $ 464.8 million. D) $ 22.9 million. Show Answer Correct Answer: A) $ 3.8 million. 24. Which element makes plant green? A) Potassium. B) Magnesium. C) Phosphorus. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 25. In soil there is ..... of air A) 45%. B) 25%. C) 5%. D) None of above. Show Answer Correct Answer: B) 25%. 26. A soil from a field had mass of 47.80 grams and a volume of 32.50 cm3. The oven dry mass of a soil was 35.50 grams. Calculate the bulk density of a soil. A) 1.90g/cm3. B) 1.50g/cm3. C) 1.09g/cm3. D) 1.10g/cm3. Show Answer Correct Answer: C) 1.09g/cm3. 27. Which particle of soil is the largest? A) Sand. B) Gravel. C) Silt. D) Clay. Show Answer Correct Answer: B) Gravel. 28. Weathering is the process of physical and chemical alteration of rocks and minerals at or near the earth surface. Which of the following did water molecules incorporate into the structure of minerals belongs? A) Physical weathering. B) Mechanical weathering. C) Chemical weathering. D) Cultural weathering. Show Answer Correct Answer: C) Chemical weathering. 29. Which of the following is not a primary nutrient required for plant growth? A) Nitrogen. B) Calcium. C) Phosphorus. D) Potassium. Show Answer Correct Answer: B) Calcium. 30. Which of the following is the correct botanical nomenclature for a plant with the genus Bellis and the species perennis? A) Perennis Bellis. B) Bellis perennis. C) Bellis Perennis. D) Perennis bellis. Show Answer Correct Answer: B) Bellis perennis. ← 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