Question

Which of these can be considered as disadvantage of hydropower generation?

• A. Dams can be constructed only in limited areas.
• B. Large areas of land get submerged within water when dams are erected.
• C. Submerged vegetation rots under anaerobic conditions and produce methane, a green house gas.
• D. All of these

Answer 1

The correct option is D

All of these

Disadvantages of hydro power generation are:-

1. High investment costs

2. Dependent on precipitation

3. Sometimes messes up wildlife

4. Loss of fish species

5. Change in river or stream quality

6. Cost for construction

7. Hydroelectric power production require flooding of entire valleys and scenic areas.