Fuel is defined as any chemical substance which burns in the presence of Oxygen to give out energy in various different forms to be utilized in different activities.
When the dead organism mainly zooplankton is buried underneath and subjected to high pressure and temperature produces fossil fuels and petroleum.
Petroleum is defined as the naturally occurring yellowish-black liquid beneath the earth's surface.
The fractional distillation of Petroleum produces many hydrocarbons which can be used as fuels.
The main components of petroleum are LPG, Diesel, Kerosene, paraffin wax, and lubricating oil.
LPG is used for domestic and industrial purposes.
Kerosene is used in stoves, lamps, and in Jet aircraft etc.
Aviation kerosene, also known as QAV-1, is the fuel used by airplanes and helicopters equipped with turbine engines, such as pure jet, turboprops, or turbofans.
Paraffin wax is used in candles, Vaseline, ointments, etc.