Question

Fireman Fireman crawl on the floor of a room that is filled with smoke why do they do this

Answer 1

cuz the smoke goes towards the celing as it is lighter. So, they crawl.

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Answer 2

Answer:

Because this cause blockage of oxygen. Oxygen, which itself support fire when blocked, fire cannot be burn. That is why, a candle burned and covered with an inverted glass does not support burning.