The most important gases when studying the atmosphere are nitrogen and oxygen (as O2 and O3).
The most important gas in this case is carbon dioxide.
This gas is ozone (O3).
Nitrogen is the most common gas in the earth's atmosphere (air is the name of that gas mixture).
Water Vapor
I'd say the most important gasses in the Earth's atmosphere are oxygen and water vapour.
The most important are water vapors.
the most abundant gas in the atmosphere is nitrogen
Argon is the most abudunt gas in atmosphere
What is the most Abundant gas are in the Atmosphere
The ozone gas is the important one in atmosphere. It is present inside the stratospheric region of atmosphere.
The most important gas in the Mars atmosphere is carbon dioxide.
the most abundant gas of the atmosphere is nitrogen with high percentage 78.09