Given a scientific question, generate a correct answer to it.

Q: Which part of the body has mucus and hair to trap dust and also warms and moistens air so to not harm lung tissue?

A: the nose
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Q: A crow that becomes used to a scarecrow and lands on it is an example of what?

A: habituation
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Q: Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of what?

A:
protons to neutrons
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