_______,_________,__________,_________and__________ make up our Earth's Atmosphere?

2 ⤊

___,_,__,_and______ make up our Earth's Atmosphere?

2007-03-23 19:35:56 · 4 answers · asked by edwardmong 1 in Environment

4 answers

Nitrogen (N2) 780,840 ppmv (78.084%)
Oxygen (O2) 209,460 ppmv (20.946%)
Water (H20) 10,000 - 40,000 ppm (1% to 4%)
Argon (Ar) 9,340 ppmv (0.9340%)
Carbon dioxide (CO2) 383 ppmv (0.0383%)
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

2007-03-23 20:57:14 · answer #1 · answered by Helmut 7 · 2⤊ 0⤋

Nitrogen, oxygen, argon, carbon dioxide..

2007-03-24 02:47:09 · answer #2 · answered by sam b 5 · 0⤊ 1⤋

H C O N and a little of some other gases
h :hydrogen
C:carbon
O:oxygen
N:nytrogen

2007-03-24 03:03:36 · answer #3 · answered by qute boy 1 · 0⤊ 1⤋

hmmm I think it is oxygen, nitrogen, hydrogen and ozone

2007-03-24 02:39:48 · answer #4 · answered by kicking_back 5 · 0⤊ 2⤋