why it is needed to build a dam?
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A dam is built to control water through placement of a blockage of earth, rock and/or concrete across a stream or river. Damsare usually constructed to store water in a reservoir, which is then used for a variety of applications such as irrigation and municipal water supplies.
Mark brainliest please. . please. .
Mark brainliest please. . please. .
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to save enough water for multi purpose uses...to save rain water..to produce electricity...and certain multipurpose uses it is necessary to bulid a dam...
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