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.

[EX Q]: Question: A scientist sees that some galaxies are closer together than before, so they know that the universe's expansion is 
 Answer: less
[EX A]: As the Universe expands, galaxies move further and further apart.

[EX Q]: Question: As we move slower we wind up getting 
 Answer: cooler
[EX A]: The higher the temperature, the more energy the particles have and the faster they will move and diffuse.

[EX Q]: Question: If Jim works hard and decreases the strength of his muscles, his endurance becomes 
 Answer: smaller
[EX A]:
Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.