Oxygen shows the most variation in its atmospheric concentration because it is constantly removed from atmosphere by human and animal activities.
Atmospheric gases refers to the gases that are present in the atmosphere.
The atmospheric gases include:
The volume or concentration of these gases may vary over time because human and animal activities on the earth as well as other natural processes.
However, of the atmospheric gases, oxygen shows the most variation in its atmospheric concentration because it is constantly removed from atmosphere and may not be replenished as much as it is removed in some places.
In conclusion, atmospheric gases are gases present in the atmosphere.
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