Question

Mention any two advantages and two disadvantages of producing hydroelectricity by building dams on rivers

Answer 1

Hyy frnd☺☺

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☆ADVATAGES》

●IT CAN BE USE AGAIN & AGAIN .

●IT IS CHEAP & CLEAN

●STORING WATER CONTROLS FLOODS

☆DISADVANTAGES》

■LIMITED GEOGRAPHICAL SITES

■LARGE LAND IS SUBMRGE UNDER WATER .

■FISHES & WILDLIFE ARE HUGELY AFFECTED .
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Answer 2

Heya☺☺


Here's ur answer! !!!


ADVANTAGES:

▪ a clean and non polluting source of energy.
more efficient.
▪ most conventional renewable source of energy.
▪ requires low operating cost.


DISADVANTAGES:

▪due to the construction of dams, large areas of vegetation gets submerged. the submerged vegetation decays under anaerobic conditions and gives rise to methane , a greenhouse gas.
the concrete used during construction produces green house gases.
▪highly expensive construction.


Hope it helps you!!!!
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