Subject :NSO Class : Class 5
A fire extinguisher sprays foam or gas to cut off the supply of
AFuel
BAir
CWater
DHeat.
Ans 1:
Class : Class 7
master answer is wrong it is (A)
Ans 2: (Master Answer)
Class : Class 1
B
Air contains oxygen, which helps in burning. To extinguish a fire it is necessary to cut off the supply of oxygen (air).
Ans 3:
Class : Class 8
why does SOF developers say their answer master answer