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: If Jim is playing with two objects and he moves them further away from each other, what will happen to the gravitational force between the two objects? 
 Answer: decrease
[A]: The further objects are away from each other, the smaller the gravitational force.


[Q]: Question: Don sees wavelengths using a spectrometer. A wavelength that is very short likely has a _____ frequency compared to a longer one. 
 Answer: higher
[A]: Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa.


[Q]: Question: What would happen to Earth's atmosphere if the amount of greenhouse gases in it was decreased? 
 Answer: cool down
[A]:
More greenhouse gases trap more heat and warm the atmosphere.