What elements make up the earth's atmosphere?

1 Answer
G_Ozdilek
Jul 10, 2017

Nitrogen gas, oxygen gas, argon, carbondioxide, etc.

Explanation:

Composition of clean dry air is

Nitrogen (#N_2#) 78.08%; oxygen (#O_2#) 20.95%; argon (Ar) 0.93%; carbondioxide (#CO_2#) 0.04%; neon (Ne) 0.0018%; helium (He) 0.0005%), etc.

Carbondioxide has been rising at a notable rate due to ever increasing greenhouse gas emissions and decreasing photosynthetic plants, natural areas, etc.

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