What is the most abundant gas in the Earth's atmosphere?..
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nitrogen
nitrogenThe most abundant gas in the atmosphere isnitrogen, with oxygen second. Argon, an inert gas, is the third most abundant gas in the atmosphere.
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Answer:
Nitrogen
Explanation:
The most abundant naturally occurring gas is Nitrogen (N2), which makes up about 78% of air. Oxygen (O2) is the second most abundant gas at about 21%. The inert gas Argon (Ar) is the third most abundant gas at the atmosphere.
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