Question

Give reason for it is dangerous to sleep in a closed room in which a coal fire is burning

Answer 1

Since burning of coal produce Carbon monoxide "due to unburnt carbon particle called suit". Due to this people may not be able to breathe properly and cause death of infant.

Answer 2

when coal fire is burning in closed room then we should not sleep because the smoke of coal is flow in the room and harm our lungs when we take air and burning coal make our room so warmer the warmer heat is try to exit in the closed room and it get harm the wall to expend it.