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Biology

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Look at the levels of carbon dioxide in the data table below.

What quantity of carbon dioxide was in the atmosphere in 1980?
317 ppm
326 ppm
339 ppm
371 ppm

please hurry if you can :] i thought it was 339, but other answers say it's 371...

Look at the levels of carbon dioxide in the data table below. What quantity of carbon dioxide was in the atmosphere in 1980? 317 ppm 326 ppm 339 ppm 371 ppm ple class=

Answer :

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