According to Figure 2, the average increase in CO2 concentration (in ppm) per year over the last 250 years is closest to which value?
A
0.5 ppm/year
as ears.
50.
202
B
1.0 ppm/year
C
1.5 ppm/year
pheric
o g Anmivaar
1 answer
Based on the given information, it is not possible to determine the average increase in CO2 concentration per year over the last 250 years.