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: If a substance does not release molecules into the air from its surface, it will not have what? Answer: smell

A: If a substance does not release molecules into the air from its surface, it will not have a smell.
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Q: Question: How many pathways do plants have for carbon fixation? Answer: three

A: Three many pathways do plants have for carbon fixation.
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Q: Question: What element is released into the atmosphere by the burning of fossil fuels? Answer: sulfur

A:
The element sulfur is released into the atmosphere by the burning of fossil fuels.
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