Fossil fuel

Fuel formed over millions of years from dead plants and animals

A fossil fuel is a carbon compound- or hydrocarbon-containing material such as coal, oil, and natural gas, formed naturally in the Earth's crust from the remains of prehistoric organisms, a process that occurs within geological formations. Reservoirs of such compound mixtures can be extracted and burned as a fuel for human consumption to provide heat for direct use, to power heat engines that can propel vehicles, or to generate electricity via steam turbine generators. Some fossil fuels are further refined into derivatives such as kerosene, gasoline and diesel.

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