(d) The concentration of carbon dioxide in the atmosphere can be measured in parts per million (ppm).
Figure 1 shows the measurements in January 2018 and January 2019.
concentration of
carbon dioxide in ppm
January 2018
407.96
January 2019
410.83
Figure 1
0 Calculate the increase in the concentration, in ppm, of carbon dioxide from
January 2018 to January 2019.
Give your answer to the nearest whole number.
12)