renewable energy

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Energy that is obtained from sources that are for all practical purposes inexhaustible, which includes moving water (hydroelectric power, tidal power, and wave power), thermal gradients in ocean water, biomass, geothermal energy, solar energy, and wind energy. Contrast this with energy from sources such as fossil fuels, of which there is a finite supply which is exhaustible. Also known as renewables.

Subjects: Environmental Science.

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