The given line charts represent how the size of Antarctica ozone layer hole had changed between 1980 and 2000 and the figures of produced gases that are harmful for ozone layer.According to the charts it is clear that the size of the hole increased dramatically and in terms of the emissions , the amount of h2o2 witnessed a great drop ,whereas the remaining two ones showed the reverse trend.
As for the former line graph ,in 1980 the hole accounted for 25 square km and remained unchanged until 1984,after which it started to rise steadily and reached 200 by 1992.In the following 4 years it dropped by 50 square km prior to its jump to 250.
According to the second chart ,by far the largest proportion of damaging emissions was followed by the gas named h2o2 with 150 metric tones.Over the next five years it climbed to its peak of 200 and from 1985 onwards it began to decrease until its production was completely stopped by 2000.Starting with just below 100 metric tones the figures of h2 remained relatively stable during the first decade,after which it experienced a movement upwards ending with approximately 160 in 2000.Lastly the production h2n3 innitiated only in 1990,it rose to well over 50 by 1995 and improved further reaching roughly 80 by the end of a timeframe.