1. Karewas are found in:

2. Soil pH indicates:

3. Hummus is:

4. Mulching helps in:

5. Sheet erosion is

6. Soil erosion is caused by:

7. Entisols are:

8. Black soil is also called the following:

9. Saline soil pH is generally

10. Desert soil has:

11. Red soil develops on:

12. Laterite soil is formed due to:

13. Black soil is rich in:

14. Black soil is ideal for:

15. Bhangar soil is

16. Khadar soil is

17. Alluvial soil covers approx.

18. Most abundant soil order in India:

19. Important factor of soil formation:

20. Leaching refers to:

21. Weathering means:

22. A soil profile consists of the following:

23. Parent rock is found in:

24. Subsoil is known as:

25. Topsoil is also called the following:

26. The uppermost soil layer is:

27. Soil exists in how many states?

28. Soil contains which components?

29. Soil Survey of India was established in

30. Pedology is the study of: