Answer:
Hydroelectric dams is the correct answer.
Explanation:
The conversion of flowing power into water and electricity is known as hydro power. It is a renewable source. Earlier the hydro power plants were used for milling. Today the hydro power plants are used to generate electricity. In turbines the mechanical energy is converted to electrical energy by using an electromagnetic generator. The Columbia river basin is the largest concentration of hydroelectric generation in US and it fulfills forty four percent of electricity needs. The US government constructed many dams to meet the energy needs of its industries.
