A glance at the first figure provided illustrates the changes in the size of the
ozone
Use synonyms
hole
from 1980 to 2000; Use synonyms
while
the second one compares the Linking Words
production
of three detrimental gases to the Use synonyms
ozone
layer during the same period.
In general, not only did the existing Use synonyms
hole
in the Use synonyms
ozone
layer enlarge but the Use synonyms
production
of some harmful gases climbed.
It is evident from the information supplied that the Use synonyms
ozone
Use synonyms
hole
expanded during that time. From a negligible 300 Use synonyms
square
Use synonyms
km
in 1980, the size of the Use synonyms
ozone
Use synonyms
hole
reached 2000 Use synonyms
square
Use synonyms
km
in 1990. Use synonyms
Although
it shrank to 1000 Linking Words
square
Use synonyms
km
in 1992, it again extended and peaked at approximately 3700 Use synonyms
square
Use synonyms
km
in 2000.
With regard to the damaging gases, the Use synonyms
production
of CFC-12 experienced a stable growth, reaching from 30 Use synonyms
tonnes
in 1980 to about 43 Use synonyms
tonnes
in 2000. In stark contrast, Use synonyms
however
, producing CFC-11 plunged from a peak of 70 Linking Words
tonnes
in 1980 to 2 Use synonyms
tonnes
in 2000. Noticeably, there was no trace of N2O until 1990; Use synonyms
Nonetheless
, after that its Linking Words
production
increased, reaching 25 Use synonyms
tonnes
in 2000.Use synonyms
golriiz.azizi1991