CBSE Class 10 Answered
Q - 1 What are the advantages and disadvantages of rain water harvesting?
Q - 2 What are the advantages and disadvantages of dams?
Q - 3 What are the causes of the water scarcity?
Asked by jullypradhan001 | 30 Jul, 2017, 05:09: PM
Expert Answer
Advantages of building big dams:
- Development of village and urban economy
- Rapid industrialisation (water in dams are supplied to indusries leading to industrialisation)
- Urbanisation (Water stored in dams can help in fulfilling water demands of local population)
- Generation of hydro electricity
Disadvantages of building big dams:
- Large dams affect the natural flow of rivers. This results in hampering the flow of sediments. Excessive accumulation of sediments in the reservoirs causes damage to the marine life.
- The dams on the flood plains submerge the vegetation and soil leading to its gradual decomposition.
- It further results in floods due to the deposition of sediments in the reservoirs.
- It causes destruction of the forest areas and the displacement of tribal and local communities.
- The construction of big dams destroys the natural surroundings and biodiversity of an area
Answered by Social Science Expert | 31 Jul, 2017, 08:08: AM
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Concept Videos
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Seq_1_GeographyWaterScarcityInIndia
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Seq_2_GeographyLimitationsLargeDams
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