Question

Please help in the question...

Answer 1

the ans is -

1.In flat basins large dams cause flooding of large tracts of land, destroying local animals and habitats.

2.People have to be displaced causing change in life style and customs, even causing emotional scarring. About 40 to 80 million people have been displaced physically by dams worldwide.

3.Large amounts of plant life are submerged and decay anaerobically (in the absence of oxygen) generating greenhouse gases like methane. It is estimated that a hydroelectric power plant produces 3.5 times the amount of greenhouse gases as a thermal power plant burning fossil fuels.

therefore proper steps should be taken in building dams!!

hope it helps u !! :)

Answer 2

Because after the dam is build some surrounding areas are submerged and so the natural vegetation or Agricultural lands get destroyed. So we should look carefully at environmental aspects.

Hope it helps you!! ☺️ ☺️