Question

The dams over rivers are made broader at the bottom than at the top. Give reason.

Answer 1

As we go deeper in the water the force and pressure increases and if the dams will not be broader at the bottom then the dam will be destroy or crack due to heavy force and pressure. That's why the dams over rivers made broader at the bottom than at the top.

Answer 2

Pressure exerted by a liquid is dependent on the depth that it increases with greater pressure . That is to say, as the depth increases, pressure applied by water on the walls of the dam also increases. In order to withstand the great pressure, the walls are build thicker. Hence a dam has broader walls at the bottom then at the top.

Mark as brainliest plzz ❤️

xxxxxxxxxxxxxxxxxxxxxx