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Advantages and Disadvantages of Dams

Dams trap river water behind barriers to turn turbines and generate electricity. The water is then released through holes in the dams. Dams have advantages like producing clean energy at low cost once built, working well where there is abundant water, and potentially improving landscapes. However, dams are expensive to construct initially, flood surrounding areas, disrupt river water flow between countries that share rivers, and can cause pollution issues in tropical regions.

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Achyutha Anil
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57 views9 pages

Advantages and Disadvantages of Dams

Dams trap river water behind barriers to turn turbines and generate electricity. The water is then released through holes in the dams. Dams have advantages like producing clean energy at low cost once built, working well where there is abundant water, and potentially improving landscapes. However, dams are expensive to construct initially, flood surrounding areas, disrupt river water flow between countries that share rivers, and can cause pollution issues in tropical regions.

Uploaded by

Achyutha Anil
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPT, PDF, TXT or read online on Scribd
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Dams

• Dams trap water along


rivers.
• The water turns a
turbine which makes
electricity.
• The water is then
released through a
hole in the dam.
Advantages
• Dams don’t make very much pollution.
Advantages
• doesn't cost much money after the dam has been built.
Advantages
• Works well in places with lots of water.
Advantages

• When dams are made it can improve landscape or


leisure.
Disadvantages
• The lake created by a
dam takes up lots of
space.
• Some people think
they spoil the
landscape.
• The lake can flood
farmland.
Disadvantages

• Costs a lot to build.


• For example, the Three Gorges Dam in China cost
US$100 billion.
Disadvantages
• . The water can be diverted to another place.
• There is a big problem when two countries
share a river
Disadvantages
• Dams can cause dirty water and pollution.
• In tropical places this can cause disease.

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