Question

Why is a barrage created constructed across a narrow opening to a sea?

Answer 1

The correct answer is:

1. To harness the tidal energy, a barrage (dam) is constructed across the narrow opening to the sea, from which hydroelectric power can be generated.
2. Due to the movement of the sea into and out of the barrage, the turbines rotate and the connected dynamo rotates to generate electricity.

Hence, the barrage is constructed across a narrow opening to a sea to generate electricity.