Question

Which of the following is necessary to build a hydroelectric power plant?

a. a fast-moving river

b. space for tall smokestacks

c. a large supply of fossil fuels

d. oceanfront propertyd.

Answer 1

The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity. But hydroelectric power doesn't necessarily require a large dam.