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: Simon was digging in his yard and found that the rocks that were deeper in the ground, compared to the surface rocks, were likely 
 Answer: older
[EX A]: Therefore, deeper rock layers must be older than layers closer to the surface.

[EX Q]: Question: If Mona is studying the galaxy and she notices that the universe is expanding less then it used to, what does that mean is happening to the galaxies in the universe? 
 Answer: moving closer together
[EX A]: As the Universe expands, galaxies move further and further apart.

[EX Q]: Question: When there are not a lot of people in one area they need 
 Answer: low resources
[EX A]:
More people need more resources.