instruction:
Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
question:
Question: What cannot be created or destroyed in a chemical reaction? Answer: matter
answer:
Law stating that matter cannot be created or destroyed in chemical reactions.

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Question: What is the most common type of cancer in adult males? Answer: prostate
answer:
The most common type of cancer in adult males is cancer of the prostate gland. The prostate gland is part of the male reproductive system. About one third of all cancers in men are prostate cancers.

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Question: What type of energy is possessed by autumn leaves before they fall? Answer: potential energy
answer:
Before leaves fall from trees in autumn, they have potential energy. Why do they have the potential to fall?.