(a) Interpret f(19): = 415 in terms of carbon dioxide.' Choose all statements that are correct. O The statement f(19) = 415 means that C = 19 when t = 415. O The statement f(19) 415 means that C = 415 when t = = 19. O In the year 415, the concentration of carbon dioxide in the atmosphere was 19 ppm. O In the year 2019, the concentration of carbon dioxide in the atmosphere was 415 ppm. 'en.wikipedia.org, last accessed February 24, 2020.

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