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 Input:
Question: Fred found a longitudinal wave. The particles are getting further apart. The amplitude is 
 Answer: decreasing

Ex Output:
The closer together the particles in a longitudinal wave are, the greater the amplitude.


Ex Input:
Question: When we are pumping all the water out of a lake the lake's water level will 
 Answer: decrease

Ex Output:
As the water is pumped out, the water table slowly falls, requiring wells to be dug deeper, which takes more money and energy.


Ex Input:
Question: When particles get farther apart what happens to the amplitude? 
 Answer: decreases

Ex Output:

The closer together the particles in a longitudinal wave are, the greater the amplitude.