In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[Q]: Question: What do you call sound that has a wave frequency higher than the human ear can detect? Answer: ultrasound
[A]: You call sound that has a wave frequency higher than the human ear can detect ultrasound.


[Q]: Question: Do particles collide more in two reactants when they are both in fluid forms or solid forms? Answer: fluid
[A]: Do particles collide more in two reactants fluid they are both in fluid forms or solid forms.


[Q]: Question: What are the high points in a transverse wave called? Answer: crests
[A]:
The high points in a transverse wave are called crests.