Mathematics
Mathematics, 14.09.2019 02:30, lovemelikeajew

Before the industrial revolution in 1800 the concentration of carbon in earth’s atmo- sphere was 280 ppm. the concentration in 2015 was 399 ppm. what is the percent increase in the amount of carbon in the atmosphere?

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Before the industrial revolution in 1800 the concentration of carbon in earth’s atmo- sphere was 280...

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