Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

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


[Q]: Collision theory states that chemical reactions occur when atoms, ions, or molecules collide.
[A]: What states that chemical reactions occur when atoms, ions, or molecules collide?


[Q]: Ocean waves travel(s) at the interface between the sea surface and the atmosphere.
[A]:
What travels at the interface between the sea surface and the atmosphere?