Question

People usually keep Angethi/burning coal in their closed rooms
during winter season. Why is it advised to keep the door open?


NCERT Class VIII
Science - Exemplar Problems

Chapter 6. Combustion and Flame

Answer 1

The burning coal angithis will generate heat which leads to smoke.

If a person inhales this smoke for a longer period he will start experiencing breathing problem which may lead to the death of a person.

So the burning coal is never kept in a closed room.

Burning coal can create some harmful gases and it can produce some amount of toxin too. So it is better to avoid such experiment in closed areas.

Answer 2

The burning coal angithis will generate heat which leads to smoke.

If a person inhales this smoke for a longer period he will start experiencing breathing problem which may lead to the death of a person.

So the burning coal is never kept in a closed room.

Burning coal can create some harmful gases and it can produce some amount of toxin too. So it is better to avoid such experiment in closed areas