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Advantage of building dam:

-prevent flooding in lower course

-produce hydroelectric power for economic and industrial development

-better for irrigation

-can store water from rain and directly from the rivers so we have water during times of droughts

-improve water transport

-attract tourists

Disadvantage of building dams:

-it's very expensive

-many people have to move

-upper-middle course will be flooded

-historical sites will be flooded

-collapse of the dam may cause great damage

-the living environment of animals and fishes will be destroyed in the lower course

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14y ago

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