Respuesta :
Answer:
boiling
Explanation:
when a substance is boiled it can re-cool and return to its original state in most cases, while combustion, oxidation and photosynthesis are irreversible.
Answer:
boiling
Explanation:
when a substance is boiled it can re-cool and return to its original state in most cases, while combustion, oxidation and photosynthesis are irreversible.