Question

year co₂ (ppm) 1960 317 1970 326 1980 339 1990 354 2000 371 2010 390 what quantity of carbon dioxide was in the atmosphere in 1980? 317 ppm 326 ppm 339 ppm 371 ppm

Explanation:

To find the quantity of carbon dioxide in the atmosphere in 1980, we refer to the table. Looking at the row where the year is 1980, the corresponding \( \text{CO}_2 \) (ppm) value is 339.

Answer:

C. 339 ppm (assuming the options are labeled with C for 339 ppm; if the options are in order as given, the third option: 339 ppm)