This quiz works best with JavaScript enabled. Home > Agriculture > Environment > Soil > Soil And Agriculture – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Soil And Agriculture Quiz 1 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This is made of a mixture of weathered rock particles and organic material (humus). A) Soil. B) Regolith. C) Bedrock. D) Monolith. Show Answer Correct Answer: A) Soil. 2. Recommended soil pH to maintain phosphorous in the soil. A) 6 -7. B) 6.5 - 7. C) 6.5 - 7.5. D) 6 - 6.5. Show Answer Correct Answer: D) 6 - 6.5. 3. Which type of soil is best for growing plants? A) Clay. B) Sand. C) Dirt. D) Loam. Show Answer Correct Answer: D) Loam. 4. Which of the following is the correct order of soil particles in order of increasing particle size? A) Clay-sand-silt. B) Sand-clay-silt. C) Silt-clay-sand. D) Clay-silt-sand. Show Answer Correct Answer: D) Clay-silt-sand. 5. What can be grown on lower slopes of hill? A) Millets. B) Tea. C) Pulses. D) Cotton. Show Answer Correct Answer: B) Tea. 6. Loamy soil with a dark color is good for A) Construction. B) Nothing. C) A lake. D) Farming. Show Answer Correct Answer: D) Farming. 7. Agriculture most likely began A) 10, 000 years ago in the Middle East. B) 15, 000 years ago in China. C) 200, 000 years ago in Africa. D) 150, 000 years ago in Egypt. Show Answer Correct Answer: A) 10, 000 years ago in the Middle East. 8. Sustainable Agriculture ..... A) Increases biodiversity. B) Reduces soil erosion. C) Improves soil fertility. D) All of these choice s. Show Answer Correct Answer: D) All of these choice s. 9. Bokashi's fermentation period A) 1 week. B) 13 days. C) 1 1/2 weeks. D) 20 days. Show Answer Correct Answer: A) 1 week. 10. Where does most of the water go when it rains? A) In the rivers. B) In the ocean. C) In the gutters. D) It absorbs into the soil. Show Answer Correct Answer: D) It absorbs into the soil. 11. Decomposition is ..... A) Nature's way of recycling. B) The breaking down of once living plants and animals. C) Decaying. D) All of the above. Show Answer Correct Answer: D) All of the above. 12. An example of a soil parentmaterial is A) Humus. B) Topsoil. C) Leaf litter. D) Volcanic rock. Show Answer Correct Answer: D) Volcanic rock. 13. Carbon to Nitrogen Ratio A) 65 carbon : 35 nitrogen. B) 55 carbon : 45 nitrogen. C) 85 carbon : 15 nitrogen. D) 75 carbon : 25 nitrogen. Show Answer Correct Answer: D) 75 carbon : 25 nitrogen. 14. Farm animals such as Cows, Buffaloes and Sheep are known as? A) Livestock. B) Pets. C) Domestic animals. D) Cattle. Show Answer Correct Answer: A) Livestock. 15. Weathering is ..... A) Rocks, grass, and mud. B) The breakdown of rocks into smaller pieces. C) The breakdown of wind, rain, and friction. D) The weather outside. Show Answer Correct Answer: B) The breakdown of rocks into smaller pieces. 16. What are monocultures? A) A farming method where one type of pesticide is used. B) Groups of people who practice one method of farming. C) A farming where multiple crops are planted in one field. D) Large expanses of a single crop type. Show Answer Correct Answer: D) Large expanses of a single crop type. 17. Plant food element responsible for greening of the leaves A) B. B) C. C) O. D) None of the above. Show Answer Correct Answer: D) None of the above. 18. Which is NOT a outcome of overgrazing? A) Decreased plant growth. B) Decreased biodiversity. C) Soil Degredation. D) Increased water infiltration. Show Answer Correct Answer: D) Increased water infiltration. 19. Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty? A) Clay. B) Sand. C) Silt. D) Humus. Show Answer Correct Answer: B) Sand. 20. A farmer has an infestation of aphids and green flies. He introduces ladybugs, which prey on aphids, and uses a limited dose of a pesticide to deal with the flies. The farmer's approach to insect pests is A) Biological control. B) Chemical control. C) Organic pest management. D) Integrated pest management. Show Answer Correct Answer: D) Integrated pest management. 21. When there are not enough plants to hold topsoil in place, water and ..... carry the topsoil away, leaving the subsoil exposed A) Sunlight. B) Birds. C) Wind. D) Magnetic fields. Show Answer Correct Answer: C) Wind. 22. Sustainable agriculture is important because while human population continues to grow, which of the following will not? A) Animal population. B) Arable land. C) Food production. D) GM crops. Show Answer Correct Answer: B) Arable land. 23. These are some problems that are associated with agriculture Except A) Land tenure, Marketing, technical knowledge. B) Rural infrastructure, credit, praedial larceny. C) Climate, topography, trade. D) Subsidies, biotechnology, genetic engineering. Show Answer Correct Answer: D) Subsidies, biotechnology, genetic engineering. 24. Which is neither a Kharif nor a Rabi crop? A) Pulses. B) Cotton. C) Ragi. D) Sugarcane. Show Answer Correct Answer: D) Sugarcane. 25. The type of soil formed is determined by ..... horizon. A) R horizon (regolith/bedrock). B) C horizon (subsoil). C) A horizon (topsoil). D) O horizon (humus). Show Answer Correct Answer: A) R horizon (regolith/bedrock). 26. What can you do to promote sustainable food production A) Eat less meat. B) Buy certified organic products. C) Eat locally grown food. D) All of these. Show Answer Correct Answer: D) All of these. 27. Decomposition is important because it A) Gets rid of dead organisms. B) Returns nutrients to the soil. C) Creates soil. D) Is a part of the circle of life. Show Answer Correct Answer: B) Returns nutrients to the soil. 28. "A tree root was found wrapped around a large mass of rock splitting it into smaller pieces" the scenario BEST describes which aspect of weathering? A) Abrasion. B) Biological. C) Chemical. D) Physical. Show Answer Correct Answer: B) Biological. 29. A farmer interested in raising healthy crops should look for a A) Heavy clay soil with a high pH and a dark color. B) Loamy soil with a low pH and a light color. C) Loamy, clumpy soil with a neutral pH and a dark color. D) Sandy soil with a high pH, no clumps, and a light color. Show Answer Correct Answer: C) Loamy, clumpy soil with a neutral pH and a dark color. 30. You would expect to find most farmers who use GM crops living in A) Countries with weak environmental laws. B) Relatively poor, undeveloped countries. C) Countries with strong environmental protection laws. D) Relatively wealthy, developed country. Show Answer Correct Answer: D) Relatively wealthy, developed country. 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