What is/are the reason(s) to oppose the construction of dams over the rivers?

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Agricultural/ forest land is submerged under water.

Ecosystem is destroyed

Rehabilitation of villages

All of the above.

answer is D.

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Detailed Solution

Constructions of dams over rivers are opposed by the local people due to its disadvantages like rehabilitation, agricultural/ forest land being submerged under water, and the ecosystem being destroyed.
Constructing a dam over a river has a lot of advantages, like power generation and water supply for irrigation. Construction of dams has disadvantages such as large areas of agricultural land and forest land, and human habilitations are to be sacrificed. Ecosystems are destroyed when they are submerged under water in dams. These are the reasons why environmental and social activist opposes the construction of dams.

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