Biology · Oct / Nov 2018 · Paper 22 · Question 6
5090
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The graph shows how the percentage of carbon dioxide in the atmosphere has changed since the year 1700. 1700 1750 1800 1850 1900 year 1950 2000 2050 0.038 0.040 0.036 0.034 % carbon dioxide 0.032 0.030 0.028 0
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6(a)[5]
6(b)[5]
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