Question

why are we advised never to sleep in a room with burning coal fire in it​

Answer 1

Answer:

We are advised never to sleep in a room with burning coal fire in it because the burning of coal emits carbon dioxide in the air which is harmful for us. ... Carbon monoxide reduces the ability of the blood to carry oxygen.

Answer 2

because burning coal emits carbon which is very harmful in a room it cause a lack of oxygen and abolish the working of blood and it produce so so carbon monoxide oxide this gas is very poisonous and it can kill you