explain the advantage and disadvantages of multi purpose project
Answers
Advantages:
1) These are the main sources of power generations.
2) They provide us neat, pollution free and cheapest energy which is the backbone of industry and agriculture.
3) These projects control floods because water can be stored in them.
4) These projects are the main source of irigation and also help in conserving soil.
Disadvantages:
1) Due to construction of dams, there are no adequate floods in the river. Because of this, the soil of the downstream region does not get nutrient rich silt.
2) Dams also fragment rivers making it difficult for aquatic fauna to migrate for spawing i.e to produce eggs.
3) It resulted in the displacement of local communities. The local people often have to give up their land and livelihood and their meagre access and control over resources for the greater need of the nation.
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4. Flood control Dam fragments a river thus making it difficult for aquatic fauna to migrate and spawn.
5. Inland navigation Reservoirs submerge the existing vegetation and soil leading to its decomposition over time.
6. Fish breeding Deforestation and displacement of local people.