instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: If Milo starts rubbing two surfaces together quickly and then decrease the speed, what happens to the amount of energy produced? 
 Answer: decreases
answer:
Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.


question:
Question: Compared to a hydrocarbon with a single carbon atom, would a hydrocarbon with 10 carbon atoms have 
 Answer: a greater number of isomers
answer:
The more carbon atoms a hydrocarbon has, the greater the number of isomers.


question:
Question: Jeff is exercising his muscles at the gym. Over time his muscles will grow 
 Answer: bigger
answer:

Muscles that are exercised are bigger and stronger than muscles that are not exercised.