I will answer for mainly one gas, 40Ar. This is generated by the radioactive decay of potassium, and from this mechanism, 99.6% of our atmospheric argon derived.
38Ar and 39Ar are our principal naturally occurring isotopes, produced in stellar nucleosynthesis, but depending upon the particular history, various stars have different ratios of various isotopes.
14C is generated in the upper atmosphere by the impact of incoming cosmic rays upon 14N, and this eventually distributes itself throughout the whole atmosphere. This nuclide has a half life of over 7 000 years, and is very useful for dating materials of archaeological interest.
co2 and nitrogen along with many others such as methane every time you fart
air
Additional gases can be added to the air by releasing them from their current container or confinement. Gases will naturally mix together in various concentrations depending on their composition.
what is being done to show that there are gases in the atmosphere
By William Ramsay
evaporation
the gases found around your house is a stove...:D
567 gases in the world
The gases that are around us are 78% nitrogen, 21% oxygen and 1% carbon dioxide, argon and other gases
Added a new column.
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Gases flout around us everywhere. You cannot see them because they are invisible.They bounce around the walls.