instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Low energy causes waves to bring sand up onto the beach during summers.
answer:
What causes waves to bring sand up onto the beach during summers?

question:
Tornadoes can occur in any.
answer:
At what time of the year can tornadoes occur?

question:
Vitamins are the organic compounds that the body needs in small amounts to function properly; humans need 13 different ones.
answer:
What are the organic compounds that the body needs in small amounts to function properly; humans need 13 different ones?