Why are dams built?

For aesthetic purposes

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To conserve water

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To effectively utilise freshwater

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For cleaning water

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Solution

The correct options are
B To conserve water
C To effectively utilise freshwater
A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control floods, and generate electricity. Humans have learnt how to conserve and effectively utilise freshwater by constructing dams.

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