This page contains polls dedicated to How do dams affect the environment?.
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Most dams are built to meet people's growing demand for water, but sometime dams cause unforeseen environmental damage. Dams are usually built across valley entrances, creating enormous reservoirs of water.

Some are built to provide water for hydroelectric power stations while others control the flow of rivers that are liable to flood. Unfortunately, the best places to, dams are usually in the most pictures« parts of the countryside.

The Aswan High Dam was built to control the flow of the read more...

Tags: water, dam

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