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What are disadvantages of dams?

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What are disadvantages of dams?

Disadvantages of Dams Reservoirs often emit a high percentage of greenhouse gases. Often disrupts local ecosystems. It disrupts the groundwater table. Blocks progression of water to other countries, states or regions.

What are the advantages of dam?

Advantages of Dams

  • Water from dams is used for irrigation.
  • Water from Dams is treated and distributed in nearby towns and cities for drinking purposes.
  • Dams are used to generate Electricity through Hydro Electric Power.
  • Dams prevent loss of life and property caused by flooding .
  • Dams provide recreation around the area.

What are the disadvantages of a large dam?

Some Other Disadvantages Include Relocation is another big concern. The building of large dams can result in serious ecological damage. Although modern planning and design of dams have been less prone to the devastating results, in the past old dams have been known to be ruptured.

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What are the disadvantages of constructing dams?

Some Disadvantages of Dams are: The cost of construction is very high. Sometimes takes dacades for construction of dams. High standard materials are required to built dams. Regular maintenance of dams is necessary.

What are the negative effects of dams?

In flat basins large dams cause flooding of large tracts of land,destroying local animals and habitats.

  • People have to be displaced causing change in life style and customs,even causing emotional scarring.
  • Large amounts of plant life are submerged and decay anaerobically (in the absence of oxygen) generating greenhouse gases like methane.

    • What are the advantages of building a dam?

    Advantages of dams are numerous, that is the reason so much money and work goes into building and maintaining them. Some of the advantages are: Electricity is produced at the constant rate with the help of hydroelectricity or hydroelectric power.