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: Jeff put a rock under very minimal metamorphosis. The rock probably _____ its original form. 
 Answer: resembles
The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.

Question: Keely had just run a mile and was now running slower to _____ _____. 
 Answer: cool down
When particles move more slowly, temperature is lower and an object feels cooler.

Question: When we spend less and less time lifting a lot of weights we become 
 Answer: weaker

Anaerobic exercises cause muscles to get bigger and stronger.