Q. 4 B4.0( 8 Votes )

Give scientific r

Answer :

A dam is a barrier that restricts the flow of water or streams. Reservoirs created by dams provide water for various activities like irrigation, industrial use, aquaculture, and human use. Along with a few benefits, construction of dams has more ill effects.

• Construction of large dams requires a very large area for which forests are cut down.

• Temperature of running water is slightly high as compared to that of still water. When dams are built on a running water it makes the water near to dam, still. Different vegetation develops in different temperature conditions and if the temperature of water near the dam is changed abruptly then it would deter the vegetation of that area.

• The water on the other side of the dam becomes so less that the plants and animals in that area also die.


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