Question

what is spontaneous combustion??​

Answer 1

Answer:

rapid combustion

Explanation:

Heat generated internally by rapid oxidation.

Answer 2

Answer:

It is combustion that occurs at room temperature on its own. It is shown by substances  that have an ignition temperature less than room temperature.

For example: Burning of yellow phosphorous. In summers, Yellow phosphorous catches  fire itself even at room temperature.

Many disastrous fires in coal mines result due to this kind of combustion. The heat rays  coming from the sun or a lightning strike might be responsible for this kind of  combustion.