Deutsch: *Fossile Brennstoffe* / Español: *Combustibles fósiles* / Português: *Combustíveis fósseis* / Français: *Combustibles fossiles* / Italiano: *Combustibili fossili* /

Fossil Fuels are the nation"s principal source of electricity. The popularity of these fuels is largely due to their low costs. Fossil Fuels come in three major forms-coal, oil , and natural gas. Because Fossil Fuels are a finite resource and cannot be replenished once they are extracted and burned, they are not considered renewable.