Question

explain how carbon dioxide is able to control fires (answer in short)

Answer 1

CO2 being heavier than oxygen, covers the fire like blanket and also brings down the temperature of fuel. Since, contact between the fuel and oxygen is cut off the fire comes under control.

Answer 2

Fire need 3 things O2 , fule and thing to burn this is called fire triangle

Co2 stop o2 and brake the fire triangle