Answer:
The
various advantages and disadvantages of multi-purpose river projects can be
compared as given Below
Advantages
(i) Irrigation of crops
(ii) Electricity generation
(iii) Water supply for industrial and domestic purposes
(iv) Flood control
(v) Inland navigation
(vi) Fish breeding
Disadvantages
(i) Natural flow of rivers is affected, causing poor flow
of sediments also.
(ii) Excessive sedimentation of the reservoir
(iii) Stream beds become rockier, affecting marine life.
(iv) A dam fragments a river, thus making it, difficult
for aquatic fauna to migrate and spawn.
(v) Reservoirs submerge the existing vegetation and soil
leading to its decomposition over time
(vi) Deforestation and displacement of local people occurs.
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