Fossil fuels

Science

Definition

Non-renewable energy sources formed from the remains of ancient organisms buried and compressed over millions of years. Coal, oil, and natural gas are the three main fossil fuels, and burning them releases carbon dioxide and other greenhouse gases.

Examples

  • Coal formed from ancient swamp plants used to generate electricity
  • Petroleum (oil) refined into gasoline for vehicles
  • Natural gas used for home heating and cooking
Key Fact

Fossil fuels take millions of years to form but are consumed in minutes when burned

Related Terms

Greenhouse effect Global warming Climate change Renewables

Study This Concept

Practice fossil fuels with free review games in these units:

AP Environmental Science Unit 6: Energy Resources and Consumption