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Wrire 4 andvantage and disadvantages of dams. Only 4 niether more nor less |
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Answer» Rajnesh soory but in ur advantages u only write on electricity. U think more advantages except electricity DISADVANATGES:\t1. Dams are extremely expensive to build and must be built to a very high standard. 2. The high cost of dam construction means that they must operate for many decades to become profitable.\t3. The flooding of large areas of land means that the natural environment is destroyed.4. People living in villages and towns that are in the valley to be flooded, must move out. This means that they lose their farms and businesses. In some countries, people are forcibly removed so that hydro-power schemes can go ahead. ADVANTAGES: 1. Once a dam is constructed, electricity can be produced at a constant rate.2. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high. 3. Dams are designed to last many decades and so can contribute to the generation of electricity for many years / decades. 4. The lake\'s water can be used for irrigation purposes. #Advantages of Dams →Flood control →Hydroelectricity →Navigation →Recreation →water supply →Irrigation #Disadvantages of dams →waterborne diseases→High cost of construction →Poor habitat for aquatic life →Restricts natural flow →excessive sedimenatation →Submerging of existing vegetation |
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