Question

Which of the following are disadvantages of hydro power plant?

• A. Dams can be constructed only in a limited number of places.
• B. Large areas of agricultural land and human habitation are sacrificed
• C. Methane is released contributing to green house effect
• D. All of above

Answer 1

The correct option is D All of above

In hydro electric plants:

1. Dams are constructed in hilly areas, hence only a limited number of places.

2. Large areas of agricultural land and human habitation are sacrificed as they get submerged.

3. The vegetation which is submerged rots under anaerobic conditions and methane is released contributing to green house effect.