explain the disadvantages of construction large dams
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Some of the disadvantages are: Dams tend to be extremely expensive to build and when a decision is taken to build one anyway, it must adhere to a very high standard. ... You must have heard of the rare flooding related to big dams. But this flooding of large areas of land means that the natural environment is destroyed.
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Explanation:Advantages :
1}These are the main source of power generation.
2}These projects control the floods because water can be stored in them. These projects have converted many, 'rivers of sorrows' into 'rivers of boon'.
3}Thes projects are the main source of irrigation and also help in conserving soil.
Disadvantages:
1}Dams also fragment rivers making it difficult for aquatic fauna to migrate for spawning, i.e , to produce eggs.
2}It resulted in displacement of local communities.
3}The multipurpose projects induced earthquake, caused waterborne diseases......
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