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: cooking food to proper temperatures protects against food poisoning by killing bacteria and viruses

A: Preparing food at the proper temperatures?
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Q: Fact: Matter in the liquid phase has variable shape

A: matter in the liquid phase has what shape?
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Q: Fact: an organism 's environment affects that organism 's acquired characteristics

A:
An acquired characteristic is?
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