Air is for us to take O2,
Air is for autotrophs to take in CO2.
Air can form cyclone, tornado and hurricane,
It goes up to form cloud and give us rain.
Air is rich in nitrogen,
It is also present with the molecules of hydrogen.
Air helps the iron to rust,
Air is the envelop of gases present on the crust.
O2 and nitrogen makes the bulk of air,
Co2 and other gases are very few so it is good or not fair.
Of course the less amount of CO2 is less in air which is good.
But, how the plants will synthesize their item & how we will get much food?
Air exerts pressure,
Sometimes the aroma is mixed with air and gives us pleasure.