What are the percentages of the two major gases in the atmosphere?

Answer 1

The two main gases found in the Earth's atmosphere are Nitrogen (around 78%) and Oxygen (around 21%).
Nitrogen and Oxygen (in order) are the two most abundant elements in the earth's atmosphere.
Nitrogen (78%) and oxygen (20%). Argon constitutes about 1%. The remainder is trace gases, water vapor, and particulates.

Answer 2

The atmosphere is primarily composed of Nitrogen (N2), which accounts for 78%. Oxygen follows, accounting for 20% of its volume, with argon less than 1%. The remainder is composed of particulates and trace gases, including water vapor.

Answer 3

The relative percentages, by volume, of the Earth's atmospheric gases are (approximately):

Nitrogen (N2): 78.08%

Oxygen (O2): 20.95%

Argon (Ar): 0.93%

Carbon dioxide (CO2): 0.038%

Water (H2O): 1%

Ozone (O3), nitrogen oxides (NOx), methane (CH4), sulphur dioxide (SO2) and other trace gases form up the rest.

Water vapour in the atmosphere is actually very variable, 1% is a good average.

Answer 4

The two major gases in Earth's atmosphere are nitrogen (about 78%) and oxygen (about 21%). These gases make up the majority of the atmosphere and are essential for supporting life on our planet.

Answer 5

nitrogen which is 78% and oxygen which is 21%

Answer 6

Dry air contains roughly (by volume) 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.

Answer 7

Nitrogen makes up about 79% of the atmosphere.

Oxygen makes up about 20% of the atmosphere.

Answer 8

Nitrogen makes up the vast majority of the atmosphere, at 78%, followed by Oxygen at 21%, with the remaining 1% made up of various gases, mainly Argon.

Answer 9

Actually only one gas does: nitrogen.

Answer 10

nitrogen and oxygen