Question

Advantage and disadvantaged of multi purpose river project

Answer 1

Advantage

1. Irrigation of crops

2. Electricity Generation

3. Water supply for industrial and domestic purposes

4. Flood Control

5. Inland Navigation

6. Fish breeding

Disadvantage

1. Natural flow of river is affected causing poor flow of sediments also.

2. Excessive sedimentation of the reservoir.

3. Stream beds become rockier , affecting marine life.

4.Dam fragments a river thus making it difficult for aquatic fauna to migrate and spawn .

5. Reservoirs submerge the existing vegetation and soil leading to its decomposition overtime.

6. Deforestation and displacement of local people.

Answer 2

Explanation:

A multipurpose project is that which simultaneously serves several purposes. A dam built across a river often serves more than one purpose at a time and it is termed as a multipurpose project. It comes with some advantages at the same time some disadvantages. The advantages are flood control in flood-prone areas, irrigation facilities, hydroelectricity, check soil erosion etc. On the other hand, it has disadvantages such as, it restricts the natural flow of the river and the sediments are deposited in the river bed, it causes deforestation and disturbs the aqua life of the river