part f\nhydroelectric dams convert kinetic energy from moving water to electrical energy. why do you think…

Brief Explanations:

When a hydro - electric dam is built, it creates a reservoir. The reservoir slows down the water flow. Since the force of moving water is a major cause of erosion, a slower - flowing water has less erosive power. So, the rate of erosion decreases.

Answer:

The reservoir created by the dam slows down water flow, reducing the erosive power of the water.