This quiz works best with JavaScript enabled. Home > Agriculture > Soil Science > Fundamentals Research > Fundamentals Of Soil Science – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 16 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. What is the solid layer of rock beneath the soil A) Top soil. B) Loam. C) Soil. D) Bed rock. Show Answer Correct Answer: D) Bed rock. 4. The three groups of rocks are classified by A) Color. B) Chemical Composition. C) How they form. D) Grain size. Show Answer Correct Answer: C) How they form. 5. 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. 6. The break down of rock into smaller pieces is called A) Decompose. B) Trees. C) Plant matter. D) Weathering. Show Answer Correct Answer: D) Weathering. 7. How is rice planted? A) A seed drill. B) A seed spreader. C) It seeds itself. D) A row planter. Show Answer Correct Answer: A) A seed drill. 8. What are the three types of soil we learned about? A) Insects, sand, topsoil. B) Clay, sand, humus. C) Topsoil, subsoil, bedrock. D) Earthworms, sand, silt. Show Answer Correct Answer: B) Clay, sand, humus. 9. Name the Climatic factors that can affect soil. A) Temperature. B) Temperature and wind. C) Wind and rain. D) Temperature, wind and rain. Show Answer Correct Answer: D) Temperature, wind and rain. 10. Which of the following plants does well in below freezing temperatures? A) Corn. B) Cacti. C) Carrots. D) Watermelons. Show Answer Correct Answer: C) Carrots. 11. Soils form in layers, or ..... A) Levels. B) Mixtures. C) Top soils. D) Horizons. Show Answer Correct Answer: D) Horizons. 12. ..... is the type of soil used most often with plants and on farms. It is a mixture of clay, sand, and silt. A) Loam. B) Soil. C) Humus. D) Dirt. Show Answer Correct Answer: A) Loam. 13. ..... soil has large grains. A) Sandy. B) Clay. C) Loamy. D) None of above. Show Answer Correct Answer: A) Sandy. 14. Which of the following organisms is considered beneficial to plants? A) Thrips. B) Spittlebugs. C) Moths. D) Spiders. Show Answer Correct Answer: D) Spiders. 15. Which of the following is a true statement about photosynthesis? A) There are three stages in the photosynthesis process?. B) Photosynthesis is essentially evaporation of water and is similar to perspiration in humans. C) Photosynthesis creates a net energy production of 36 units of ATP. D) In photosynthesis, carbon dioxide and water react with light energy to form photosynthates and release oxygen as a byproduct. Show Answer Correct Answer: D) In photosynthesis, carbon dioxide and water react with light energy to form photosynthates and release oxygen as a byproduct. 16. Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What property of soil is Ellen testing? A) Water retention. B) Color. C) Ability to support plant growth. D) Texture. Show Answer Correct Answer: D) Texture. 17. What is true about silt? A) Silt has larger particles than sand and is sticky. B) Silt has smaller particles and holds water better than sand. C) Silt is made from humus and loam. D) Plants grow well in silt because it holds nutrients. Show Answer Correct Answer: B) Silt has smaller particles and holds water better than sand. 18. Carlos Linnaeus is known as: A) "Godfather" of taxonomy. B) Creating all the common names for plants. C) Neither of these. D) Both of these. Show Answer Correct Answer: A) "Godfather" of taxonomy. 19. Rock particles of soil come in what three sizes.? A) Sand, silt, clay. B) Humus, silt, bark. C) Sand, texture, color. D) None of above. Show Answer Correct Answer: A) Sand, silt, clay. 20. Which plant structure is most involved in photosynthesis? A) Flowers. B) Leaves. C) Stems. D) Roots. Show Answer Correct Answer: B) Leaves. 21. Decayed remains of plants and animals are called ..... A) Soil. B) Clay. C) Humus. D) Litter. Show Answer Correct Answer: C) Humus. 22. ..... is darkest colour soil. A) Subsoil. B) Bedrock. C) Topsoil. D) None of the above. Show Answer Correct Answer: C) Topsoil. 23. What is soil made of? A) Soil comes from other minerals. B) Soil comes from, mainly, bedrock. and is with other weathered materials. C) Soil comes from rocks. D) Soil is broken down rocks and is smoothed out, through a process. Show Answer Correct Answer: B) Soil comes from, mainly, bedrock. and is with other weathered materials. 24. A proportion of 30% sand, 35% silt and 35% clay. Identify what type of soil is this? A) Sandy soil. B) Clayey soil. C) Loamy soil. D) Silty soil. Show Answer Correct Answer: C) Loamy soil. 25. ..... dig through the soil which loosens it so plants grow better. A) Dogs. B) Ladybugs. C) Earthworms. D) Caterpillars. Show Answer Correct Answer: C) Earthworms. 26. What is a soil made up of very small broken pieces of rock? A) Loam. B) Bedrock. C) Soil. D) Silt. Show Answer Correct Answer: D) Silt. 27. Mrs. Davis is comparing soil for retention. Retention of water depends on- A) The sizes of a soil's particles. B) The amount of water the soil can hold. C) The color of the soil. D) The types of plants that will grow in it. Show Answer Correct Answer: B) The amount of water the soil can hold. 28. What is the middle layer of soil which is a combination of soil and rocks? A) Subsoil. B) Bedrock. C) Humus. D) Topsoil. Show Answer Correct Answer: A) Subsoil. 29. What is the primary crop of Nevada? A) Garlic. B) Apples. C) Coffee. D) Almonds. Show Answer Correct Answer: A) Garlic. 30. Soil give ..... to the plant. A) Air. B) Sunlight. C) Nutrients. D) Leaves 3 types of soil, clay and organic !. Show Answer Correct Answer: C) Nutrients. ← 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