Environmental Impact of Dams

Q. What happens when the natural flow of river water is disrupted?

1. Excessive sediment deposition
2. Floods occur
3. Long droughts
4. Loss of human life

Q. Statement 1: The damming of the rivers disrupts the natural flow of the river water.
Statement 2: Dams have increased the breeding of aquatic organisms.

1. Statement 1 is true and statement 2 is false
2. Statement 2 is true and statement 1 is false
3. Both statements are true
4. Both statements are false

Q. What was the major cause for floods in Gujarat and Maharashtra in 2006?

1. Long drought
2. Heavy rains
3. Release of water from dams
4. Lack of dams

Q.

Opposition to the construction of large dams is due to

1. Social reasons

2. Economic reasons

3. Environmental reasons

4. All of the these

Q. Write short notes on:
1. Western Ghats: Natural vegetation;
2. Natural disaster in the Deccan plateau;
3. The Eastern Himalayas.

Q. Which of the following natural disasters are likely to be caused by dams?

1. Earthquakes
2. Nuclear explosion
3. Landslides
4. Floods

Q. Pick the incorrect statement.

1. Dams are not a modern invention
2. Dams help in the production of hydroelectricity.
3. Dams cause depletion of freshwater.
4. Dams cause mass displacement.