Fuel is any material capable of relasing energy with a combustion that releases
heat from the subtance, a clear example is the gasoline.
The principal funtion of the fuel is boost various machinary and means of transport.
There are several types of fuels such as biofuel and fossil fuel.
The fossil fuel is a fuel made millions years ago from the remains of extinct
plants and dead animals, the chemical descomposition reactions transformed these organic residues into what we now know as fossil fuel, is renewable but it would take another million year to be
re-formed.
The biofuel is made of vegetal kingdom subtance, for example the natural gas and
different unusuable fruits, its renewable provided we protect the trees that produce them.
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