In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

Q: Question: Reusing your paper plates is a good way to avoid making excess? Answer: rubbish.

A: An example of avoiding waste is using an object more than once
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Q: Question: Skittles left in snow become? Answer: hard.

A: something in a cold place becomes cold
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Q: Question: Unlike CO2, oxygen is a waste product of? Answer: cactus.

A:
In the photosynthesis process oxygen has the role of waste product
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