The current graphs illustrate how the 
size
 of the Use synonyms
Ozon
 Use synonyms
hole
 had changed over Antarctica from 1980 to 2000 Use synonyms
in addition
 to the Linking Words
production
 of gases damaging the Use synonyms
Ozon
 layer in Use synonyms
this
 period.
At first glance, it is comprehended that the Linking Words
Ozon
 Use synonyms
hole
 Use synonyms
size
 over Antarctica has significantly enlarged from 1980 to 2000. What is more, CFC-11 Use synonyms
production
 had dramatically declined  Use synonyms
in contrast
 to the other Linking Words
Ozon
-damaging gases over these years.
Regarding the Use synonyms
Ozon
 Use synonyms
hole
 Use synonyms
size
 over Antarctica, the Use synonyms
size
 of the Use synonyms
hole
 was approximately less than 500 square km in 1980. It followed an increasing trend till 1990 and Use synonyms
then
 dropped to almost 1000 square km by 1993. There was a considerable surge in the Linking Words
Ozon
 Use synonyms
hole
 Use synonyms
size
 from Use synonyms
then
 to 2000.
Based on the second graph, the Linking Words
production
 of CFC-11 was Use synonyms
near to
 70 Correct your spelling
nearly
tonnes
 in 1980 and remained unchanged until 1983 and fell sharply to a low of almost 5 Use synonyms
tonnes
 by 2000. The CFC-12 Use synonyms
production
 was about 30 Use synonyms
tonned
 which Correct your spelling
tonnes
skightly
 had increased to an amount of more than 40 Correct your spelling
slightly
tonnes
 til 2000. The Use synonyms
production
 of N2O emerged in 1990 and significantly increased to Use synonyms
near
 30 Rephrase
nearly
tonnes
 by 2000.Use synonyms