Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Fact: an ocean is a source of heat and moisture for a hurricane
A hurricane is growing on the east coast, and it's coming off of the ocean, as they do. By the time the hurricane hits the east coast, it will have built up quite a bit, and this is because of?

Fact: the sun is located directly overhead at noon
To protect against the noon day sun you might use?

Fact: cycles of freezing and thawing water cause ice wedging

Ice wedging is caused by cycles of freezing and thawing of what?