in recent year the multipurpose project and dams have come under great security analyser statement sitting approx example
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DISADVANATGES:
1. 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.
3. 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.
5. The building of large dams can cause serious geological damage. For example, the building of the Hoover Dam in the USA triggered a number of earth quakes and has depressed the earths surface at its location.
1. 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.
3. 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.
5. The building of large dams can cause serious geological damage. For example, the building of the Hoover Dam in the USA triggered a number of earth quakes and has depressed the earths surface at its location.
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The reasons for multi-purpose projects and large dams coming under great scrutiny and opposition are (i) Local communities have been displaced from their original setdement areas, with consequent loss of livelihood and income.
(ii) These projects create conflicts between people
wanting to avail benefits from the same water
resources. This leads to unsetded disputes.
(iii) Objections have been raised about sedimentation of the reservoirs leading to floods in nearby areas, causing land degradation by deprivation of silt (a natural fertilizer) to the land, and other consequent problems associated with such projects.
(ii) These projects create conflicts between people
wanting to avail benefits from the same water
resources. This leads to unsetded disputes.
(iii) Objections have been raised about sedimentation of the reservoirs leading to floods in nearby areas, causing land degradation by deprivation of silt (a natural fertilizer) to the land, and other consequent problems associated with such projects.
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