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.
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Question: Question: A team has pizza after a game, and they eat most of it, but leave the rest of the pizza out. The pizza is later inedible because of? Answer: lack of food preservation.

Answer: microorganisms cause food to spoil


Question: Question: A plum tree's purple leaves uses light energy to? Answer: create nourishment.

Answer: a leaf performs photosynthesis


Question: Question: Conservation is? Answer: reusing gift bags again and again.

Answer:
An example of conservation is avoiding waste