Hydroelectric power relies on which natural resource?

Hydroelectric power exclusively relies on water as its primary natural resource. This form of energy generation harnesses the flow of water, typically from rivers or dams, to turn turbines that generate electricity. The kinetic energy of moving water is converted into mechanical energy by the turbines, which is then transformed into electrical energy.

This method of energy production is renewable and sustainable, as it uses the natural water cycle without depleting the water source. Other choices like sunlight pertain to solar energy, wind signifies wind energy, and coal is a fossil fuel used for thermal power generation. None of these resources contribute to the production of hydroelectric power, underscoring the importance of water as the sole resource utilized in this energy sector.