You are presented with the question "what dissipates energy?" and the following answer choices: 
- aqueous solution
 - chlorofluorocarbons
 - carbon dioxide
 - opposing force
 - Evaporation
 - hydrogen and oxygen
 - sweating
 - fossil fuels

Now knowing that friction causes an object to lose energy and friction is a force that dissipates energy, choose the best answer.


 

    opposing force     