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

Ex Input:
Low energy causes waves to bring sand up onto the beach during summers.

Ex Output:
What causes waves to bring sand up onto the beach during summers?


Ex Input:
All enzymes have an optimal temperature and ph.

Ex Output:
All enzymes have an optimal temperature and what?


Ex Input:
If everything in a system stays the same but the pressure deceases, gas bubbles will change in they get bigger way.

Ex Output:

If everything in a system stays the same but the pressure deceases, gas bubbles will change in what way?