Air is a mixture of several gases, so is also a gas.
air is nonnewable resouce because it is mixture of gases. nature gas count as nonrenewable resource.
in the air
Air is a gas. You would need to specify what gas, like helium or carbon dioxide.
air is neither liquid or solid, it is a gas
gas
a room would be sealed, the gas would be put in, the people would die.
I would think air quality in general would be better in the winter due to a lower pollen and mold spore count.
it would decreas poulition to the air
A Zeppelin was a rigid dirigible ("steerable") airship filled with a buoyant gas (such as hydrogen or helium) that would allow it to float in the air. Named for the German Count Ferdinand von Zeppelin, who did a lot of the early development of this technology.
Typically Natural gas req 10:1 air to gas ratio. therefore 150,000 btuh= 150 cfh so air required would be 1500 cfh air.
if you are having problem with air, i would look at the pump or the carburation on engine. usually air in lines doesnt bother a gas engine
smoke is a gas. say that somebody was burning coal that would create smoke which is a gas connected to oxygen, air which is also a gas.