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: adulthood is a stage in the life cycle process

A: Humans go through multiple stages in their life. First is infancy, last is?
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Q: Fact: gravity causes orbits

A: What causes orbits?
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Q: Fact: nearly all fossils are found in sedimentary rock

A:
Sedimentary rock may be a result of?
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