Physics, 31.12.2019 06:31, haleeleslie

The atmospheric concentration of carbon dioxide increased from 278 ppm in 1790 to 383 ppm in 2007. what is the approximate percent increase in carbon dioxide concentration from 1790 to 2007?

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The atmospheric concentration of carbon dioxide increased from 278 ppm in 1790 to 383 ppm in 2007. w...