Question

what fraction of air is carbon dioxide?

Answer 1

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Airalso contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.
PLEASE PLEASE PLEASE MARK ME BRAINILIST I

Answer 2

By volume air contain 78.09percent of nitrogen 20.95 perc of oxygen 0.93 perc of argon carbon dioxide and small  amount of other gases