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.

Q: Question: What will happen to a rock when it's under tremendous stress? Answer: it will fracture

A: A rock under enough stress will fracture. There may or may not be movement along the fracture. If there is not movement, the fracture is a joint. If there is movement, the fracture is a fault.
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Q: Question: What does a healthy immune system fight off? Answer: infections and other dieases

A: Eat well, get enough sleep, and be active every day. These healthy lifestyle choices will help keep your immune system healthy so it can fight off respiratory infections and other diseases.
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Q: Question: Atoms of different elements can combine in simple whole number ratios to form what? Answer: chemical compounds

A:
Atoms of different elements can combine in simple whole number ratios to form chemical compounds.
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