Here is an excellent answers I found on another answer site. See if it helps you. I have provided a link below.
It can't be found out because the amounts of live sports games are always changing but i would say roughly 17%
About 78% of it is nitrogen. Another 21% of the atmosphere is oxygen, and 1% are other gasses found in very small amounts.
Helium is found in trace amounts in the atmosphere.
I need an answer.
Yes, it is in the air, but at a low percentage, and difficult to purify. The other place where it 'can' be found is the sun ('sun' = 'helios' in Greek), in very large amounts, but that is not quit 'natural'
Zinc is found in small amounts while mining.
It is found in large amounts in the stars and in the Earth's atmosphere
I found Wiki Answers better.