Fossil Fuels
Summary: Non-renewable energy sources formed from ancient organic matter. Tags: concepts chemistry environment Created: 2026-04-23T01:03:00Z Last Updated: 2026-04-23T01:03:00Z
Content
Fossil fuels are energy-rich substances formed from the remains of plants and animals that lived millions of years ago. They are non-renewable, meaning they cannot be replaced as fast as they are used.
Types:
- Coal: Solid, from compressed plant matter
- Petroleum (oil): Liquid, from marine organisms
- Natural gas: Gas, mainly methane
Burning fossil fuels releases energy but also CO2 and pollutants, contributing to global warming and air pollution.