This quiz works best with JavaScript enabled. Home > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 23 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. There are approximately how many different kinds of soil in the United States? A) 5 types. B) 10 types. C) 1, 000 types. D) 100 types. Show Answer Correct Answer: A) 5 types. 2. 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. 3. Which primary plant nutrient promotes strong root growth in young seedlings? A) Phosphorus. B) Potassium. C) Nitrogen. D) Iron. Show Answer Correct Answer: A) Phosphorus. 4. Why are good conservation practices important for lumber companies to follow? A) It adds groundwater. B) It increases soil erosion. C) It decreases soil erosion. D) The soil is shaded. Show Answer Correct Answer: C) It decreases soil erosion. 5. 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. 6. How do you determine the texture of soil? A) Use a spring scale. B) Observe color of particles. C) Rub particles between fingers. D) Taste particles. Show Answer Correct Answer: C) Rub particles between fingers. 7. 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. 8. Which element makes plant green? A) Potassium. B) Nitrogen. C) Phosphorus. D) Magnesium. Show Answer Correct Answer: B) Nitrogen. 9. In soil there is ..... of air A) 45%. B) 25%. C) 5%. D) None of above. Show Answer Correct Answer: B) 25%. 10. 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) 1.10g/cm3. B) 1.90g/cm3. C) 1.50g/cm3. D) 1.09g/cm3. Show Answer Correct Answer: D) 1.09g/cm3. 11. Which particle of soil is the largest? A) Sand. B) Gravel. C) Silt. D) Clay. Show Answer Correct Answer: B) Gravel. 12. 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) Chemical weathering. B) Physical weathering. C) Mechanical weathering. D) Cultural weathering. Show Answer Correct Answer: A) Chemical weathering. 13. Which of the following is not a primary nutrient required for plant growth? A) Calcium. B) Phosphorus. C) Potassium. D) Nitrogen. Show Answer Correct Answer: A) Calcium. 14. Which of the following is the correct botanical nomenclature for a plant with the genus Bellis and the species perennis? A) Bellis Perennis. B) Bellis perennis. C) Perennis bellis. D) Perennis Bellis. Show Answer Correct Answer: B) Bellis perennis. 15. When testing the soil texture of each soil sample, what is the next step after wetting each sample? A) Rub the sample between your fingers. B) Plant a flower in each sample. C) Examine each sample with a hand lens. D) Look at the color of each sample. Show Answer Correct Answer: A) Rub the sample between your fingers. 16. This consists of an even mixture of different sizes of soil particles A) Clay. B) Silt. C) Sand. D) Loam. Show Answer Correct Answer: D) Loam. 17. What is the solid layer of rock beneath the soil A) Soil. B) Top soil. C) Bed rock. D) Loam. Show Answer Correct Answer: C) Bed rock. 18. The three groups of rocks are classified by A) How they form. B) Color. C) Grain size. D) Chemical Composition. Show Answer Correct Answer: A) How they form. 19. Soil is formed by the breaking down of rocks by the action of wind, water and climate. This process is called A) Humification. B) Weathering. C) Soil erosion. D) None of the above. Show Answer Correct Answer: B) Weathering. 20. The break down of rock into smaller pieces is called A) Plant matter. B) Weathering. C) Decompose. D) Trees. Show Answer Correct Answer: B) Weathering. ← 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