Fact 1: Friction causes an object to lose energy.

Fact 2: Friction is a force that dissipates energy.

Given the two facts above, answer the question "what dissipates energy?" with the following options: 
- aqueous solution
 - chlorofluorocarbons
 - carbon dioxide
 - opposing force
 - Evaporation
 - hydrogen and oxygen
 - sweating
 - fossil fuels


 

    opposing force     