Question

Answer these questions :-

Q. WHAT ARE DAMS ?

Q. HOW ARE THEY BENEFICIAL FOR US ?

Q. HOW CAN BE THEY HARMFUL TO SPECIES ?



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Answer 1

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$\bold{\underline{\underline{Dam:-}}}$

❇✴A dam is a barrier across flowing water that obstructs , directs or retards the flow often creating a reservoir or lake✴❇

$\bold{\underline{\underline{Benefits\:\:of\:\:dams-}}}$

✔☆☞They integrate the development of agriculture and the village economy with rapid industrialisation and growth of the urban economy.

✔☆☞They are very useful in the generation of hydroelectricity at zero cost.

✔☆☞They are helpful in water supply for domestic and industrial uses.

✔☆☞They control floods by acting as a barrier.

✔☆☞They promote recreation and tourism.

$\bold{\underline{\underline{How\:are\:they\:harmful\:to\:species?}}}$

Dams result in the change in temperature of the water bodies due to which aquatic animals are affected.

Dams also affect the natural flow of riverwater.Dams also fragmemt rivers making it difficult for aquatic fauna to migrate, especially for spawning.

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Answer 2

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