Fact 1: Coal is used to produce electricity by burning in coal-fire power stations.

Fact 2: Fossil fuels are coal, oil and natural gases.

Given the two facts above, answer the question "What are burned to produce electricity?" with the following options: 
- fossil fuels
 - organic molecules
 - kinetic energy
 - icicles
 - cigarettes
 - energy
 - glaciers
 - carbon dioxide


 

 fossil fuels        