in the Plumbing world nitrogen is used for purging the air, O2, out of medical gas lines or refrigeration lines for air conditioners. nitrogen is used because it does not burn like O2 thus leaving the inside of the pipe clean.
which gas helps to make the foam that firefighters use
Zeppelins used hydrogen gas as the lifting gas to make them buoyant in the air.
it is used to make your voice sound funny
I suppose that the gas is argon.
Helium gas is commonly used in balloons sold by vendors to make them float.
it is used to make your voice sound funny
Nitrogen.
hydrogen
helium gas
HYDROGEN
No it isn't
I think for creating flashlight The gas used in fluorescent lamps is argon. Neon is used for red lamps.