Question

Building a big dam gives rise to some problems. State the three problems that may mainly arise. Suggest a solution to any of these problem

Answer 1

Yes, building a dam costs too much and therefore many problems arise.
Some of the problems are
1) it needs a lot of money to be invested.
2) A huge amount of land is also necessary.
3) We also need facilities and equipments so that the dam is well abled to produce or generate hydroelectricity.

Hope this answer comes to your help.
All the best.
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Answer 2

ahuge amount of land is wasted


flow and heritage of fish is stoped

deforestation is happen