Question

Although large dams are useful yet they cause ecological problems”. Explain​

Answer 1

Answer:

Along with these benefits come environmental costs including riparian habitat loss, water loss through evaporation and seepage , erosion , and declining water quality . Farther-reaching consequences of dams include changes in groundwater flow and the displacement of human populations.

Explanation:

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Answer 2

Answer:

Greenhouse gases: The flooding of surrounding habitat around dams kills trees and other plant life that then decomposes and releases large amounts of carbon into the atmosphere. Because the river is no longer flowing freely, the water becomes stagnant and the bottom of the reservoir becomes becomes depleted of oxygen.