You are presented with the question "what causes a car to lose energy?" and the following answer choices: 
- Temperature
 - gas
 - slipperiness
 - friction
 - heat
 - lack of resistance
 - Dehydration
 - wind

Now knowing that friction causes an object to lose energy and objects become confusing, such as toasters, bathtubs, cars and forks, choose the best answer.


 

    friction     