This quiz works best with JavaScript enabled. Home > Agriculture > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 3 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What conservation method refers to growing crops perpendicular to the slope of a hill? A) Contour plowing. B) Terrace farming. C) Windbreaks. D) Strip cropping. Show Answer Correct Answer: A) Contour plowing. 2. What is the correct composition of soil? A) Soil is old pizza, ramen noodles, and chocolate milk.(That's why it's brown.The chocolate milk. ;D). B) Soil is the loose layer of dead leaves on the surface. C) Soil is rock particles, minerals, decayed organic material, water, and air. D) Soil is acid rain, plant growth, and limestone. Show Answer Correct Answer: C) Soil is rock particles, minerals, decayed organic material, water, and air. 3. Which of these slows down soil erosion on construction sites? A) Clear cutting. B) Strip mining. C) Contour plowing. D) Sandbags and nylon fencing. Show Answer Correct Answer: D) Sandbags and nylon fencing. 4. Choose which of the following master horizon did topmost mineral matter occurs? A) Horizon E. B) Horizon A. C) Horizon B. D) Horizon O. Show Answer Correct Answer: B) Horizon A. 5. ..... soil lets least water pass through it: A) Clay. B) Sand. C) Loam. D) None of above. Show Answer Correct Answer: A) Clay. 6. The best way to increase water holding capacity and nutrient supplying capacity of a coarse-textured soils is to ..... A) Apply large quantity of liming materials. B) Add and incorporate by deep plowing voluminous amount of clay. C) Incorporate adequate amount of organic matter. D) Apply the recommended rate of commercial fertilizer. Show Answer Correct Answer: C) Incorporate adequate amount of organic matter. 7. Definition of "soil horizon" A) A layer of soil that differs in color and texture from the layers above or below it. B) A dark-colored substance that forms as plant and animal remains decay. C) A crumbly, dark brown soil that is a mixture of humus, clay, other minerals. D) The solid layer of rock beneath the soil. Show Answer Correct Answer: A) A layer of soil that differs in color and texture from the layers above or below it. 8. What is the other half made up of? A) Dead animals. B) Rocks. C) Gases and liquids. D) Plasticlike material. Show Answer Correct Answer: C) Gases and liquids. 9. Which of the following plants live and reproduce for multiple years? A) Fillial. B) Biennial. C) Perennial. D) Annual. Show Answer Correct Answer: C) Perennial. 10. Weathering is the process of physical and chemical alteration of rocks or minerals at or near the earth surface. Which of the following did crystallization of salts belong? A) Chemical weathering. B) Cultural weathering. C) Physical weathering. D) Mechanical weathering. Show Answer Correct Answer: C) Physical weathering. 11. Compared to the primary minerals, the secondary minerals are those minerals that form from ..... A) Weathering of rocks. B) Weathering of primary minerals. C) Weathering of rocks and minerals. D) All of the above. Show Answer Correct Answer: D) All of the above. 12. A student wants to know which soil is the best to plant tomatoes in. Which of the following experiments can he complete to figure it out? A) Plant seeds in each type of soil. B) Pour 200 mL of water into each soil to see how much water is retained. C) Compare the color of the soil to a color chart. D) Wet the soil and feel the texture. Show Answer Correct Answer: A) Plant seeds in each type of soil. 13. Soils have ..... layers. A) 2. B) 1. C) 5. D) None of above. Show Answer Correct Answer: A) 2. 14. Which layer of soil is home to many rodents and insects? A) Subsoil. B) Humus. C) Topsoil. D) Farmland. Show Answer Correct Answer: C) Topsoil. 15. Very fine mineral particles of soil A) Sand. B) Silt. C) Clay. D) Horizon. Show Answer Correct Answer: C) Clay. 16. Which is the correct order of weathered rocks from smallest to largest? A) Sand, clay, silt, gravel. B) Clay, silt, sand, gravel. C) Gravel, sand, silt, clay. D) Clay, sand, silt, gravel. Show Answer Correct Answer: B) Clay, silt, sand, gravel. 17. The higher the cation exchance capacity (CEC) of a soil sample, the ..... A) Weaker the soil's capacity to hold onto water and nutrients. B) Stronger the soil's capacity to hold onto water and nutrients. C) Greater the risk of nutrient leaching. D) Greater the porespace. Show Answer Correct Answer: B) Stronger the soil's capacity to hold onto water and nutrients. 18. Which plant part absorbs light energy to produce plant sugar? A) Flower. B) Roots. C) Stem. D) Leaves. Show Answer Correct Answer: D) Leaves. 19. Agents of weathering of A) Heat. B) Wind. C) Rain. D) All of the above. Show Answer Correct Answer: D) All of the above. 20. Which soil is formed with the smallest rock particles? A) Loam. B) Sand. C) Silt. D) Clay. Show Answer Correct Answer: D) Clay. 21. It is fairly coarse and loose so water is able to drain through it easily. A) Clay. B) Sand. C) Loam. D) None of above. Show Answer Correct Answer: B) Sand. 22. Loam is clumpy, dark and has ....., ....., ..... A) Clay, silt, and sand. B) Bark, mud, and dirt. C) Plants, mud, and bark. D) None of above. Show Answer Correct Answer: A) Clay, silt, and sand. 23. What is the largest particle that makes up soil called? A) Humus. B) Erosion. C) Clay. D) Sand. Show Answer Correct Answer: D) Sand. 24. Colluvial Soils are moved by ..... A) Gravity. B) Glaciers. C) Wind. D) Water. Show Answer Correct Answer: A) Gravity. 25. A seed with two cotyledons is called a ..... A) Dicot. B) Flower. C) Monocot. D) Fruit. Show Answer Correct Answer: A) Dicot. 26. There are terms called for a major factor in soil formation, choose the correct term for each factor of soil formation. A) Chronosequence for time. B) Biosequence for organisms. C) Climosequence for climate. D) Lithosequence for topography. Show Answer Correct Answer: D) Lithosequence for topography. 27. Phosphate deficiency is seen by what coloring of the plant? A) Bluish. B) Yellow. C) Purple. D) Brown. Show Answer Correct Answer: C) Purple. 28. What percent of soil is water? A) 25. B) 45. C) 5. D) None of above. Show Answer Correct Answer: A) 25. 29. Two types of water holding in the soil, assess which of this statement belongs "after the rain, water from raindrops attracts to the available water present in the soil". A) Chelation. B) Adhesion. C) Cohesion. D) Abrasion. Show Answer Correct Answer: C) Cohesion. 30. What soil organisms like lime. A) Beetles. B) Ants. C) Earthworms. D) None of above. Show Answer Correct Answer: C) Earthworms. ← PreviousNext →Related QuizzesSoil Science QuizzesAgriculture QuizzesFundamentals Of Soil Science Quiz 1Fundamentals Of Soil Science Quiz 2Fundamentals 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