Question

The harnessing of water resources by building dams has social, economic and _______________ implications.

Answer 1

Dams are reservoirs of water that interrupt the natural flow of water. Dams have many impacts:

• Social impact: Construction of dams needs large space so the people residing in the place where the dam has to be constructed, are forced to move to another place.
• Economic impact: Construction of dams is very expensive and hence, requires a lot of money.
• Environmental impact: Construction of dams disturbs the natural habitat of that place. The quality of water also declines in a dam because natural flow is interrupted. The biodiversity is also affected and the population of fishes declines in the water stored in the dam.

So, the correct answer is 'environmental'.