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.

[Q]: Fact: exercise has a positive impact on a human 's health
[A]: Who would be healthier?


[Q]: Fact: a plant 's roots slowly break down rocks as the roots grow
[A]: What is the most likely cause of split rocks on a mountain slope?


[Q]: Fact: water absorbs solar energy in the water cycle
[A]:
What primarily drives the hydrologic cycle to produce clouds?