Fossil fuels are hydrocarbons in solid, liquid, and gaseous forms, extracted from ancient organic matter with significant environmental impacts.
Fossil fuels are compounds of carbon and hydrogen known as hydrocarbons, existing in solid (coal), liquid (petroleum), and gaseous (natural gas) forms. These fuels, derived from ancient plant and animal matter, are significant energy sources. The extraction, transportation, and processing of fossil fuels have environmental impacts due to accidents, emissions, and resource utilization.