it is used for factories
fuel
no
im not sure this is rock,but fossil fuel is used as fuel,or coal.
Coal
coal can be used to replace jet fuel and commercial jets.
Steam coal
coal
One example of a solid fuel is coal. Coal was used in many early factories during the beginning of the industrial, but was phased out because it was not a clean burning fuel source.
No. Coal is carbon which has been compressed over thousands of years underground. The coal can then be used as a fuel.
Coal is fossil fuel.
They are neither. Coal is a fuel which can be used to run motors and generators.
Coal is a fossil fuel,that is being used to produce electricity and heat.