This quiz works best with JavaScript enabled. Home > Soil Science > Fundamentals Of Soil Science – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Fundamentals Of Soil Science Quiz 18 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is Humus made up of? A) Decompose. B) Decayed animal and plant parts. C) Decayed soil. D) None of above. Show Answer Correct Answer: B) Decayed animal and plant parts. 2. Soil is formed by A) Cooling. B) Heating. C) Weathering. D) Freezing. Show Answer Correct Answer: C) Weathering. 3. Which of the following shows where soil formation happens at a faster rate? A) Cold dry climate. B) Steep slopes. C) Valleys and flat areas. D) None of above. Show Answer Correct Answer: C) Valleys and flat areas. 4. Which of the following shows that soil erosion is happening? A) The soil is deep and grows grass on top. B) Pavement is placed on the soil for a road. C) A forest of pine trees grows in the soil. D) The soil has deep gullies. Show Answer Correct Answer: D) The soil has deep gullies. 5. 'A horizon' is also called A) Substratum. B) Bedrock. C) Topsoil. D) Subsoil. Show Answer Correct Answer: C) Topsoil. 6. What does humus contain? A) Sand. B) Glass. C) Clay. D) Decayed plants and animals. Show Answer Correct Answer: D) Decayed plants and animals. 7. The removal of land surface by water, wind or ice is known as - A) Erosion. B) Retention. C) Percolation. D) None of above. Show Answer Correct Answer: A) Erosion. 8. Soil profile is a vertical section of the soil showing its horizons. Arrange the following according to the correct sequence of a Master horizons? A) O, A, B, C, E. B) A, B, C, E, O. C) O, A, B, E, C. D) O, A, E, B, C. Show Answer Correct Answer: D) O, A, E, B, C. 9. This refers to a type of water that can escape from the soil. A) Capillary. B) Hygroscopic. C) Flowing. D) Gravitational. Show Answer Correct Answer: D) Gravitational. 10. Sedimentary rocks are formed from the weathering of rocks exposed at the earth surface. The process involved the following EXCEPT. A) Fragmentation. B) Transformation. C) Transportation. D) Cementation. Show Answer Correct Answer: B) Transformation. 11. Which land class is hardest to farm? A) Class 1. B) Class 2. C) Class 5. D) Class 8. Show Answer Correct Answer: D) Class 8. 12. The topmost layer of land which is composed of grainy substance is called ..... . A) Weathered Rock. B) Bedrock. C) Soil. D) All of the above. Show Answer Correct Answer: C) Soil. 13. Mang Kanor is a farmer, he produces many types of vegetable crops in his garden. What type of approach did Mang Kanor belongs? A) Pedalogical approach. B) Edapological approach. C) Pedological approach. D) Edopological approach. Show Answer Correct Answer: B) Edapological approach. 14. The rock and mineral fragments in soil come from rock that has been A) Blasted. B) Carved. C) Weathered. D) Chemically treated. Show Answer Correct Answer: C) Weathered. 15. Factors that affect soil formation A) Climate. B) Slope. C) Vegetation. D) All of the above. Show Answer Correct Answer: D) All of the above. 16. Mechanical Weathering breaks down rocks through ..... A) Force. B) Chemical Reactions. C) Magic. D) Erosion. Show Answer Correct Answer: A) Force. 17. Breaking down of rocks by the action of wind and climate is called- A) Weathering. B) Cultivating. C) Percolation. D) None of above. Show Answer Correct Answer: A) Weathering. 18. Identify the right matcha. Sand i. smaller than sand, larger than clayb. silt ii. large particlesc. clay iii. smallest particles A) A - ii, b - i, c - iii. B) A - ii, b - iii, c - i. C) Both are correct. D) None of the above. Show Answer Correct Answer: A) A - ii, b - i, c - iii. 19. The average time estimate it takes for mature soils to develop A) 8-10 months. B) 5-10 years. C) 50 years. D) Thousands of years. Show Answer Correct Answer: D) Thousands of years. 20. Which of the following is NOT an organic material A) Worms. B) Decayed animals. C) Rocks. D) Decayed plants. Show Answer Correct Answer: C) Rocks. ← PreviousNext →Related 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 9Fundamentals Of Soil Science Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books