The graphs below show the size of the ozone hole over Antarctica and the production of three ozone-damaging gases from 1980 to 2000. Summarise the information by selecting and reporting the main features and make comparisons where relevant

The two given line graphs illustrate the

size

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of the ozone

hole

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over Antarctica and the emission of three ozone-damaging gases namely

CFC-

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11,

CFC-

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12 ,and N2O between 1980 and 2000.

Overall

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,

it is clear that

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the ozone

hole

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showed the smallest

size

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in 1980 and in 2000 ,

this

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hole

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experienced the largest

size

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.

Also

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,

CFC-

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11 had demonstrated the highest figure in 1980 and the lowest number in 2000. Interestingly, there was no sign of N2O before 1990. Generally, the first line graph was an upward trend which showed the smallest

size

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in 1980 with about 500 Square Km followed by a considerable increase until 1990 with 2000 Square Km.

Then

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, a substantial decrease can be seen from 1990 to 1990 which is followed by a dramatic boom until 2000 standing at 4000 Square Km. Notably, in 2000, the

size

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of the ozone

hole

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had become eight times larger compared

in

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to

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1980. In

second

Correct article usage

the second

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line graph, the figure for

CFC-

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11 had the first rank with 70

Tonnes

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in 1980.

Then

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, from 1980 to 1983 remained steady

which

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apply

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followed by a sharp decline until 2000 stood at approximately zero.

CFC-

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12 had illustrated an upward trend which was about 30

Tonnes

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in 1980.

Then

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, increased minimally until 2000 with almost 40

Tonnes

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. N2O which was established after 1990, had shown an upward trend beginning with zero in 1990.

Then

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a substantial increase was seen until 2000 with about 30

Tonnes

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. It is noteworthy that,

while

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CFC-

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11 accounted for the highest number of

tonnes

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in 1980 and CSC-11 stood in second rand with no sign of N2O, in 2000, the

CFC-

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11 had the lowest number of

tonnes

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and N2O had the second rank followed by

CFC-

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12. .