Question

Compare the advantages and disadvantages of multi-purpose river projects.​

Answer 1

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Compare the advantages and disadvantages of multi-purpose river projects.

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$\sf{\underline{\underline{\pink{Advantages:}}}}$

• Irrigation
• Electricity generation
• Flood control
• Water supply for industrial and domestic purposes.
• Tourist attraction
• Inland navigation

$\sf{\underline{\underline{\pink{Disadvantages:}}}}$

• The natural flow of water is affected
• Aquatic life gets affected
• Submergence of land in the surrounding areas
• Ecological consequences
• Large scale displacement of local people.

Answer 2

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ADVANTAGES ;-

(i) These are the main source of power generation.

(ii) They provide us neat, pollution free and cheapest energy which is the backbone of industry and agriculture.

(iii) These projects control the floods because water can be stored in them. These projects have converted many, ‘rivers of sorrows’ into ‘rivers of boon’.

(iv) These projects are the main source of irrigation and also help in conserving soil.

DISADVANTAGES ;-

(i) Due to the construction of dams, there are no adequate floods in the river. Because of this, the soil of the downstream region does not get nutrient rich silt.

(ii) Dams also fragment rivers making it difficult for aquatic fauna to migrate for spawning, i.e., to produce eggs.

(iii) It resulted in displacement of local communities.

(iv) The multipurpose projects induced earthquake, caused waterborne diseases.