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(b)
Percentage of
carbon dioxide
in the Earth's
atmosphere
80
60
40
20
0
3
2
Billions of years ago
0
Present
day
The mass of gas in Earth's atmosphere remains constant at 5.15 x 10 18 kg
Determine the maximum mass of carbon dioxide that was in the Earth's atmosphere.
Use the graph above.

B Percentage Of Carbon Dioxide In The Earths Atmosphere 80 60 40 20 0 3 2 Billions Of Years Ago 0 Present Day The Mass Of Gas In Earths Atmosphere Remains Const class=

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