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.

Q: Question: Dana is looking at electrons, which are moving at lower energy levels. Because these electrons have less energy, in relation to the nucleus they are 
 Answer: closer

A: Electrons at higher energy levels, which are farther from the nucleus, have more energy.
****
Q: Question: Objects that are farther apart have a _____ force of gravity. 
 Answer: weaker

A: Objects that are closer together have a stronger force of gravity.
****
Q: Question: As we get closer to the heart what happens to the artery size 
 Answer: grow

A:
Further away from the heart, the aorta branches into smaller arteries, which eventually branch into capillaries.
****