There are so many gases in the atmosphere. The most prominent is one of the minority gases which is the carbon dioxide.
If by gas you mean an atmosphere, there are no planets with an atmosphere anywhere similar to Earth.
That is called atmosphere.That is called atmosphere.That is called atmosphere.That is called atmosphere.
Oxygen gas
ATMOSPHERE
About 1/5
The least prominent gas in the atmosphere is xenon. It represents no more than one percent on the air in the atmosphere.
Carbon Dioxide and Argon
Nitrogen
the least abundant gas in our atmosphere is Argon
Nitrogen is the most abundant
Oxygen (21%).
Argon at about 1%
The least abundant gas in Earth's atmosphere is argon at 0.93%. The most abundant gas is oxygen at 78%.
Conduction is the least important meteorologically, as it primarily occurs within solids and is not a significant factor in the atmosphere. Radiation and convection play more prominent roles in transferring heat within the Earth's atmosphere.
Oxygen was the least plentiful gas in Earth's early atmosphere. The atmosphere primarily consisted of carbon dioxide, water vapor, nitrogen, and small amounts of other gases. Oxygen levels rose significantly over time due to the process of photosynthesis by early life forms.
I suppose that you think to minor noble gases.
What is the most Abundant gas are in the Atmosphere