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The Ozone Story
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Cards (6)
The atmosphere is made up of:
78
% N2
21
% O2
1% Ar
399
ppm CO2
+ others
To convert from ppm to %:
Divide
ppm by 1,000,000
Multiply
by 100 to get the percentage
CO2 has the concentration of
399
ppm in the atmosphere, this is
0.0399%
To convert from % to ppm: do the
opposite
, (
overall
)
multiply
by
10,000
N2 has the concentration of
78%
in the atmosphere, this is
780,000
ppm
Some of the polluting gases in the atmosphere:
A)
Water
B)
Methane
C)
Carbon dioxide
D)
CFCs
4