Use the graph below to determine how much higher in parts per million are carbon dioxide concentrations in the atmosphere in 1980 vs 1880?(1 point)
Possible Answers:
360 - 300 = 60 parts per million higher after 100 years
340 - 295 = 45 parts per mission higher after 100 years
350 - 290 = 60 parts per mission higher after 100 years
340 - 290 = 50 parts per million higher after 100 years