The two-line graphs illustrate the change in the
ozone
hole size over the Use synonyms
Antarctica
region from 1980 to 2000, and the amount of three gases produced Replace the word
Antarctic
which
caused damage to the Punctuation problem
, which
ozone
layer during the same period.
Use synonyms
Overall
, the Linking Words
ozone
hole size around 400 thousand square Km in 1980 saw and steady increase and Use synonyms
reaching
its ninefold at around 3.6 Wrong verb form
reached
million
in the early 21st century. Use synonyms
Moreover
, the only decrease over the two decades is in Linking Words
early
1990s, dropping from 2 Correct article usage
the early
million
square Km to 1.2 Use synonyms
million
square Km.
Turning to the next graphs, CFC-11, Use synonyms
for example
, Linking Words
remain
unchanged for 2 years at around 70 Wrong verb form
remained
million
Use synonyms
tonnes
, Use synonyms
then
continued to drop and vanished in the year 2000. CFC-12, starting from 28 Linking Words
million
Use synonyms
tonnes
in 1980, increased steadily to around 40 Use synonyms
million
Use synonyms
tonnes
over the twenty years. Use synonyms
Furthermore
, N2O Linking Words
is
not Verb problem
did
started
damaging the Wrong verb form
start
ozone
layer until 1990, Use synonyms
has
Correct word choice
and has
rose up
dramatically to 30 Wrong verb form
risen
million
Use synonyms
tonnes
in 10 years.
In summary, the peak of Use synonyms
ozone
hole size over Antarctica is 3.6 Use synonyms
million
Use synonyms
tonnes
, Use synonyms
whereas
CFC-12 and N2O Linking Words
has
become the major impact which Correct subject-verb agreement
have
damaging
the Wrong verb form
damages
ozone
layer.Use synonyms