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What are the disadvantages of multipurpose projects? |
| Answer» The disadvantages of multi-purpose river projects are as follows:\tThey cause large-scale displacement of local communities and submergence of trees and vegetation.\tRegulating and damming of rivers affect their natural flow, causing excessive sedimentation at the bottom of the reservoirs, adding to the problem of land degradation.\tDams fragment rivers, making it difficult for aquatic fauna to migrate.\tDams were constructed to control floods but they have triggered floods, devastating life and property and causing soil erosion.\tBig dams have been unsuccessful in controlling floods at the time of excessive rainfall.\tThey have induced earthquakes, caused waterborne diseases and pollution due to excessive use of water. | |