Question

why are dams over the rivers made wider at the base

Answer 1

Answer:

The reason is that the pressure exerted by a liquid increases with its depth. Thus, as the depth increases, more and more pressure is exerted by water on the wall of the dam. A thicker wall is required to withstand greater pressure, therefore, the thickness of the dam increases towards the bottom.

Explanation:

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Answer 2

dams over the river made wider at the base because it protect from natural calamity