Question

D. Answer the following questions in brief.
1. Why is soil considered an important resource? Give any three reasons.
2. Highlight any three causes of soil erosion.
3. Explain hydrological cycle with the help of a diagram.
4. How does river water get polluted? Explain.
5. Identify any three ecological problems caused by building large dams.
E. Answer the following questions.
1.
Explain any five factors responsible for the formation of soil.
2. What is meant by land use pattern? Why is it important to study the land use
influencing the utilisation of land.
3. What are Multipurpose River Valley Projects? Name any two such projects. List
multipurpose river valley project.
4. Suggest any five steps to conserve soil.​

Answer 1

Explanation:

◆Suggest any five steps to conserve soil

● Contour farming.

● Terrace farming.

● Soil-conservation farming.

● Cover crops/Crop rotation.

● Salinity management.