[Image of coal]
[Image of oil]
[Image of natural gas]
[Image of peat]
[Image of tar sands]
[Image of oil shale]
These are just a few examples of the many different types of fossil fuels that exist. Each type of fossil fuel has its own unique properties and uses. For example, coal is a solid fuel that is used to generate electricity, while oil is a liquid fuel that is used to power cars and trucks. Natural gas is a gaseous fuel that is used to heat homes and businesses. Peat, tar sands, and oil shale are all types of fossil fuels that are not yet widely used, but they have the potential to be used as a source of energy in the future.