In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: What delivers natural gas from rock that might not otherwise be obtainable? Answer: fracking

A: Fracking delivers natural gas from rock that might not otherwise be obtainable.
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Q: Question: What is an adaptation? Answer: favorable trait

A: A(n) favorable trait is an adaptation.
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Q: Question: Is urea or salt reabsorbed faster? Answer: salt

A:
Is urea or salt reabsorbed faster?
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