Question

what are the merits and demerits of construction of dam to river?

Answer 1

Hi there!

MERITS:
◆IT helps in storage of water for the right time.
◆They help in preventing floods.
◆They can be used for hydroelectricity generation.
◆They provide water for irrigation.

DEMERITS:
◆They displace many people from their houses.
◆They disturb the migration of various aquatic animals.
◆It leads to accumulation of soil in the reservoir.

Answer 2

Hey !!! ^_^


Here is your answer

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MERITS OF CONSTRUCTION OF DAMS


❏ Irrigation

❏ Electric generation

❏ Supply of water to domestic ans industrial uses

❏ Flood Control

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DEMERITS OF CONSTRUCTION OF DAMS

❏ Regulating and dancing of river affect their natural flow and excessive sedimentation at the bottom of the reservoir , resulting in rockier stream beds and poor habitat for aquatic life ..

❏ Dams also fragments river making it difficult for aquatic fauna to migrate especially for spawning ..


❏ Decrease in water supply adversely affect cities and industries . Poor flow of water during excessive rain are not control flood ...


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