Petroleum is the most important source of fuel in the world. It is made up of a mixture of hydrocarbons, which are molecules that contain hydrogen and carbon atoms. When petroleum is refined, it is separated into different products, including gasoline, diesel fuel, heating oil, and jet fuel.
Natural gas is also a fossil fuel that is made up of hydrocarbons. It is lighter than air and burns with a blue flame. Natural gas is used for heating homes and businesses, as well as for generating electricity.
Coal is a solid fossil fuel that is made up of carbon, hydrogen, and other minerals. It is the oldest form of fossil fuel and is still used today to generate electricity and power industrial machinery.
In addition to fossil fuels, there are also a number of renewable energy sources that can be used to power vehicles and generate electricity. These include solar energy, wind energy, and hydroelectric energy.
