disadvantages of dams with subheadings
Answers
Answer:
The disadvantages of building large dams are: Damming of rivers and regulating their flow result in excessive sedimentation at the bottom of the reservoir. This may hamper aquatic life and their migration to other water bodies. Building of dams result in the submergence of land and vegetation.
Answer:
1. Expensive: They are extremely expensive to build. They must be build according to a very high standard of construction.
2. Vast land are submerged: Dams flood large areas of land and submerge natural vegetations. Fertile gricultural land are submerged under the water of dams.
3. People living in the dam the vicinity must be evacuated: People living around the dam location must be shifted and relocated to another place.
4. Man made disasters: Dams can cause earthquakes and landslides.