Dams store water for irrigation, home use, and hydroelectric power. Why should the dams be constructed so that they are much thicker at the bottom than at the top ?

Explanation

To understand why dams are constructed to be thicker at the bottom than at the top, we can break down the explanation into a series of logical steps:

### Step-by-Step Solution:

1. **Understanding Pressure in Fluids**:
- Pressure in a fluid at a certain depth is given by the formula:
\[
P = \rho g h
...