What elements is air made up?
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Answer:
The complete list is: Composition of dry atmosphere, by volume ppmv: parts per million by volume Gas Volume Nitrogen (N2) 780,840 ppmv (78.084%) Oxygen (O2) 209,460 ppmv (20.946%) Argon (Ar) 9,340 ppmv (0.9340%) Carbon dioxide (CO2) 381 ppmv Neon (Ne) 18.18 ppmv Helium (He) 5.24 ppmv Methane (CH4) 1.745 ppmv Krypton (Kr) 1.14 ppmv Hydrogen (H2) 0.55 ppmv Not included in above dry atmosphere: Water vapor (highly variable) typically 1%
lreyna13 at Yahoo! Answers Visit the source
Other answers
C, H, O, N uhhh, i think those are it
chrisco_1010
about 79% nitrogen, 20% oxygen, <1% argon and other trace gases.
MrZ
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