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Which one is the most abundant in Atmosphere?
- Oxygen
- Nitrogen
- Hydrogen
- None of these
Nitrogen (N2): 78% of air.
Oxygen (O2) : 21%.
Argon (Ar) is the third most abundant gas at . 93%.
Nitrogen (N2): 78% of air.
Oxygen (O2) : 21%.
Argon (Ar) is the third most abundant gas at . 93%.