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: What element chemically weathers rock by combining with a metal? Answer: oxygen
Oxygen chemically weathers rock by combining with a metal.

Question: Isothermal expansion is a process occurring without a change in? Answer: temperature
isothermal expansion is a process occurring without a change in temperature.

Question: What do the ears have to be protected from in order to avoid hearing loss? Answer: loud sounds
Hearing loss caused by loud sounds is permanent. However, this type of hearing loss can be prevented by protecting the ears from loud sounds.