Question

what are the advantages and disadvantages of constructing a dam across reservoirs?​

Answer 1

advantage of dams-

1.it produce hydel energy which is eco friendly.

2.It prevents flood in some region.

3.it provides water to nearby places.

disadvantage-

1.contruction of dam is very costly.

2.it need maintanance.

3.on constructing dams it's nearby people have to leave that place.

4.it also threats the life of the aquatic animals.

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Answer 2

Answer:

Advantages & Disadvantages of Dams

Advantages:

1. They provide water for domestic, industry and irrigation purposes.
2. We get hydroelectric power from dams.
3. Dams can be used as waterways.
4. During heavy rainfall or excess water flow, dams store water then release water during times of low natural water flow are and meet water our water requirement. This act as flood control.

Disadvantages:

1. They are extremely expensive to build and must follow a very high standard.
2. Dams flood large areas of land and submerge natural vegetations and agricultural land.
3. People living around the dam location must be relocated.
4. Dams can cause earthquakes and landslides.