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Biology, 30.09.2019 04:00, pbarbee3034
The concentration of carbon dioxide in the atmosphere in 1958 was 310 ppm and rose to 390 ppm in 2009. the percent increase in carbon dioxide over this period of time is closest to:
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The concentration of carbon dioxide in the atmosphere in 1958 was 310 ppm and rose to 390 ppm in 200...
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