Question

explain any three reason due to which the dams have come under great opposition

Answer 1

There are many ecological reasons for this, some of them are:

1. The building of dams requires a large amount of forest cover to be cut down.

2. As a dam require a large base and ground for the flow of water the people living around the area needs to be displaced.

3.The wildlife and aquatic life get affected

4. As the water behind the dam is still it allows growth of microorganisms which disturbs the ph of water.

Answer 2

Three reasons due to which dams have come under great opposition are:-
1-Regulating and damming of rivers affect their natural flow.
2-dams also fragment rivers making it difficult for aquatic fauna to migrate.
3-the reservoirs that are created on the floodplains also submerge the existing vegetation and soil leading to its decomposition over a period of time.