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 is the most abundant gas in Earth's atmosphere, making up about 78% of the air we breathe. Oxygen is the second most abundant gas, comprising roughly 21% of the atmosphere.

Answer 3

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

Answer 4

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

Answer 5

Nitrogen (80 percent).

Answer 6

nitrogen. 78% of the air is nitrogen

Answer 7

78 percent of air is nitrogen.

Answer 8

Nitrogen

Answer 9

nitrogen

Answer 10

Nitrogen.