This quiz works best with JavaScript enabled. Home > Soil Science > Soil Science – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil Science Quiz 1 (7 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which one is NOT a description of poorly drained soils. A) Are slow to warm up in spring. B) Are easy to cultivate. C) Encourage weeds to grow. D) Are easily damaged by machinery and stock hooves. Show Answer Correct Answer: B) Are easy to cultivate. 2. What is the total annual value of Washington's food crop export? A) $ 2.2 billion. B) $ 4.4 billion. C) $ 5.5 billion. D) $ 1.1 billion. Show Answer Correct Answer: A) $ 2.2 billion. 3. This is the nutrient that plants depend upon most for water uptake A) Phosphorous. B) Potassium. C) All of the above. D) None of the above. Show Answer Correct Answer: B) Potassium. 4. This is the nutrient that plants need to form the amino acids needed to assemble proteins A) Nitrogen. B) Potassium. C) All of the above. D) None of the above. Show Answer Correct Answer: A) Nitrogen. 5. This is the nutrient that is a key component of DNA - necessary for maturation and root development A) Phosphorous. B) Potassium. C) All of the above. D) None of the above. Show Answer Correct Answer: A) Phosphorous. 6. Which of the following is a characteristic of silt? A) Rough, gritty feeling. B) Flat/Platy shape. C) Reduces water holding capacity. D) Improves water holding capacity. Show Answer Correct Answer: D) Improves water holding capacity. 7. Which of the following is NOT something provided by organic matter? A) Greater access to nutrients. B) Reduces risk of erosion & compaction. C) Serves as an energy soure of plant's food. D) Sequesters carbon in the soil, reducing GHG. Show Answer Correct Answer: C) Serves as an energy soure of plant's food. Related QuizzesFundamentals Of Soil Science QuizSoil Chemistry Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books