The given line graphs illustrate size of Antarctic ozone layer hole and the production of damaging gases during two decades from 1980 to 2000.
Overall, the first graph show the fluctuations of hole’s sizes, which reached to 250 to 2000. The second graph provide data about three gases, including F-11, H2O2, and H2 and their level of damage.
Considering the period between 1980 and 1990; production of H2 didn’t exist at that time, H2O2 started at 150 million tones and grew the highest rate about 200, then this figure declined dramatically, F-11 fluctuated slightly and remainde around 100. On the other hand, after 1990, H2 gases rose to 50 and F-11 to boosted to 150, respectively. The quantity of H2O2 inclined steeply, reaching 0.
From 1980 and 1982 the size of Antrctic holes made up 50 million square kilotones. This line increased significantly during next decade, reaching 200. Next, after some fluctuations, this rate made up almost 250.