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: roots are a vehicle for absorbing water and nutrients from soil into the plant

A: Which likely can hydrate without moving?
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Q: Fact: the circulatory system carries oxygen from the digestive and respiratory systems to the rest of the body

A: the circulatory system carries oxygen from the digestive and respiratory systems to the rest of the what?
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Q: Fact: if some nutrients are in the soil then those nutrients are in the food chain

A:
Nutrients in soil?
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