Which gas-in-air is the most-abundant

Answer 1

Nitrogen, you can't survive on it obviously but you breath it in every day it is the most abundant gas in the atmosphere followed by oxygen I think.

Answer 2

Nitrogen (80%) is the most abundant in air followed by Oxygen (20%)

Answer 3

Nitrogen (N2), is by far the most abundant gas in air.

Answer 4

Nitrogen (80 percent).

Answer 5

nitrogen. 78% of the air is nitrogen

Answer 6

78 percent of air is nitrogen.

Answer 7

Nitrogen

Answer 8

nitrogen

Answer 9

Nitrogen.