Which of the following is / are disadvantage of building large dams for generating hydro electric power?

Due to construction of dams, lot of areas of rivers having continuous fresh flowing water, have to be cleared.

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Number of trees have to be cut.

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Destroys not only the plants life but also the animals and birds life dependent on them.

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All of the above.

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Solution

The correct option is D All of the above.
The construction of dams for generating hydroelectric power and then installation of transformers and their connection to the national grid has the following four main disadvantages:
A) disturbance of the natural ecosystem in the surrounding forest area.
B) disruption of the plants and animals life.
C) displacement of people on a large scale.
D) disruption of the aquatic ecosystem.
Option D.

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Similar questions

Q. State two advantages of constructing large dams on rivers for the generation of electricity. Also mention two problems associated with these dams.

Statement 1: Dams are constructed to produce hydro electricity.

Statement 2: Dams obstruct the flow of water and water level rises, thereby increasing the potential energy which is further converted to kinetic energy, and then to electrical energy.

Q. Which of the following is not a disadvantage of building large dams?

Though dams are used to store water, generate electricity and can transfer water to great distances. But mismanagement of the water can lead to which of the following?

Two group of people debated about "Dams". Pick out the statement which were debated for and against the topic:

1. Social problems because they displace large number of peasants and tribal without adequate compensation.

2. Economic problems because construction of dams swallow up huge amount of public money.

3. Dams are used to generate electricity.

4. Dams are used to store large amount of water, which can be used later for irrigation.

5. Indira Gandhi canal has brought greenery to considerable areas of Rajasthan.

6. Environmental problems because they contribute enormously to deforestation and the loss of biological diversity.

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