Most abundant - Water Vapor
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The most abundant variable gases in Earth's atmosphere are water vapor, carbon dioxide, and methane. These gases have varying concentrations that can fluctuate based on factors such as weather patterns, human activities, and natural processes.
The most abundant gases are nitrogen and oxygen in the Earth atmosphere.
These gases are: nitrogen (78,084 %), oxygen (20,9476 %), water vapors (variable concentration), argon (0,934 %), carbon dioxide (0,0314).
The most abundant gases in Earth's atmosphere are nitrogen (N2), oxygen (O2), argon (Ar), carbon dioxide (CO2), neon (Ne), and helium (He).
Nitrogen, Oxygen, Argon & Carbon Dioxide.
The four most abundant gases in the Earth's atmosphere are nitrogen (about 78%), oxygen (about 21%), argon (about 0.93%), and carbon dioxide (about 0.04%).