Trace.
It is called "atmosphere". Also, "air".
There are many gases in the atmosphere. The two most common gases found in the atmosphere however, are nitrogen and oxygen.
All the noble gases are in the atmosphere.
It is the atmosphere.
Its atmosphere.
Nitrogen and Oxygen would be 2 of the gases in the atmosphere.
Some of the gases found in our atmosphere which absorb infrared light are: carbon dioxide, methane, and water vapor. Gases found in our atmosphere which absorb ultraviolet light are ozone (O3) and oxygen gas (O2).
Greenhouse gases.
Argon
SP2
It is called the atmosphere.
The gases surrounding an astronomical body are called its atmosphere.