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

[EX Q]: 40 m/s north of the following represents the velocity of a moving object.
[EX A]: Which of the following represents the velocity of a moving object?

[EX Q]: Low energy causes waves to bring sand up onto the beach during summers.
[EX A]: What causes waves to bring sand up onto the beach during summers?

[EX Q]: The plasma membrane controls what goes in and out of a cell.
[EX A]:
What controls what goes in and out of a cell?