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: Air pressure is higher in the 
 Answer: valleys.
answer:
Air pressure is less at higher elevations.


question:
Question: Derek needs to be able to read really small print, so he reaches for a straight lens magnifying glass, which can magnify 
 Answer: less
answer:
The more curved the convex lens is in a magnifying glass, the greater its ability to magnify objects.


question:
Question: The gravitational force between two things that are far apart is 
 Answer: weaker
answer:

The closer the field lines are drawn together, the stronger the field being described.