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: the moon does not contain water

A: Which doesn't contain water?
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Q: Fact: seeds may sprout when buried in soil

A: A person drops a bean in the dirt, and kicks some dirt over it. If the person goes to dig up that bean a month later, it is likely to have?
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Q: Fact: sediment is formed by weathering

A:
A tiny sand particle came from?
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