Fact 1: Pushing on the pedals of a bike cause that bike to move.

Fact 2: Kinetic friction is the resistance on a moving object.

Given the two facts above, answer the question "pushing on the pedals of a bike cause what?" with the following options: 
- pedals
 - get started
 - stillness
 - Pollution
 - Decrease bodily water
 - lack of motion
 - kinetic friction
 - electromagnetic energy


 

       kinetic friction  