Register for free to see more content


If the burning process does not emit any flame, then it is called combustion.
Oxygen supports combustion. Even in rockets, oxygen is considerably reduced when it reaches a certain height in the atmosphere. Hence, some amount of oxygen is added along with the fuel for combustion.
A rocket
Carbon-di-oxide occupies less than \(1\%\) of our atmosphere. Plants and animals produce carbon-di-oxide on consuming oxygen for respiration.
Carbon-di-oxide does not support combustion, but it creates suffocation. For instance, whenever fire happens inside a closed room, people trapped in it may feel suffocated. It is due to the carbon-di-oxide which is filled inside the room.
People suffocating due to fire
Also, carbon-di-oxide is used to extinguish fires. Fire extinguishers are used to put off fire by throwing a stream of carbon-di-oxide in case of fire accidents.

Firemen using fire extinguishers
The burning of dried leaves and crop remains pollutes our environment. This is due to the emission of carbon-di-oxide gas while burning.
Burning of dried leaves