Question

When does Spontaneous combustion occurs?

Answer 1

Spontaneous combustion occurs when an object -- in the case of spontaneous human combustion, a person -- bursts into flame from a chemical reaction within, apparently without being ignited by an external heat source.

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Answer 2

hlo mate.

here is your answer.

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first let's know what is combustion?it's yet process by which a combustible substance burns in the presence of oxygen and produces heat or light. there are three types of combustion spontaneous combustion is one of the three types. it occurs by itself, no igniting substance is needed to ignite it. for example -forest fire.

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