Objects need to be in contact with each other in order to experience friction. O True
O False

false

I think I am not sure

Yes

Explanation:

Because Friction is the force resisting the motion of solid surfaces that means that they have be in contact for there to be friction.

the way that the mass of carbon can be conserved through cellular respiration is through a process/law called the law of conservation of mass which even tho it undergoes a process, mass is not be destroyed or changed