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 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?.

question:
Question: When two haploid gametes unite during fertilization they form what? Answer: a diploid cell
answer:
diploid cell that forms when two haploid gametes unite during fertilization.

question:
Question: What system of the body is generally responsible for breathing? Answer: respiratory system
answer:
The respiratory system is responsible for breathing.