Weathering and Soil
GEOGRAPHY
CHAPTER 8 : WEATHERING AND SOIL EROSION
Extra Questions:-
WEATHERING
1. What is gradation?
2. Define Degradation.
3. Define Aggradation.
4.What is Weathering?
5. Define Erosion.
6. What are the various factors which influence weathering in an area?
7.What are the three types of weathering?
8. What is mechanical weathering ? State four ways by which mechanical weathering takes place.
9. How does granular disintegration take place? Where does granular disintegration commonly occur?
10.How does exfoliation take place?
11. Where does frost action occur?
12. Explain the how frost action takes place.
13. What is chemical weathering?
14. Name the 4 ways by which chemical weathering takes place?
15. Explain the 4 processes of chemical weathering : (i) Oxidation (ii) Carbonation (iii) Hydration (iv) Solution
16.What happens when Iron absorbs oxygen from the air?
17. Name some rocks that are affected by Carbonation.
18. Name some rocks that are affected by Hydration.
19.How does biological weathering take place?
20. Name some animals that cause biological weathering.
21. Name some human activities that cause biological weathering.
SOIL
1.Name the different processes involved in soil formation.
2. Define soil profile.
3. Draw a neatly labeled diagram of the Soil Profile.
4. Name the different parts of the soil profile.
5. What is humus?
6. Define Soil Erosion.
7. Name the two most common ways by which soil gets eroded.
8. What is Sheet Erosion and Gully Erosion ?
9. What are badlands? Give an example of badlands.
10. What are the main causes of soil erosion?
11. State some methods of soil conservation?
12. What is contour tilling? Where is contour tilling carried out?
13. How is the soil preserved through contour tilling?
14. Explain terrace farming. Where is this kind of farming practised.
15. What are the benefits of terrace farming?
16. Give another name for strip cropping?
17. How is strip cropping done?
18. How is contour binding carried out?
19. Define Afforestation. Where is afforestation mainly carried out?
20. How does Afforestation prevent soil erosion?
21. What is crop rotation? State two advantages of crop rotation.
22. What is fallowing?
23. How does fallowing help in soil regeneration?
24.How can controlled grazing prevent soil erosion?
25. Define organic matter.
26. What is a bund?
27. What are contours?
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