The two pie charts show the percentage of pollutants entering a particular part of ocean in 1997 and 2007. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts depict the proportion of sources of pollution in some parts of the ocean.

This

includes data from 1997 to 2007.

Overall

, the highest percentage of

pollutants

in 1997 was from

air

which was similar to 2007.

However

, in the latter year, there was

also

a high proportion of domestic sewage. In detail, in 1997, the greatest proportion of

pollutants

entering a particular part of an ocean

are

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were

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from

air

at 30%. With an 8% difference, it was followed by pollution caused by marine

,

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and domestic sewage with more than

half

of the

pollutants

from

air

at 18%. The data from industrial

waste

was adjacent to the figure

of

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for

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pollutants

from

air

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the air

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at 17%. With

half

a tenth, the third least cause of ocean pollution was offshore oil, and

lastly

,

with

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an equal fraction of 4% were from litter and farm

waste

. After a decade,

although

the rate of

pollutants

from

air

decreased by 1%,it was still considered the highest in 2007

along with

domestic sewage with the same result at 29%. Next was 17% from

marine

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the marine

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industry, and offshore oil almost tripled at 14%.

Moreover

, industrial

waste

nearly

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was nearly

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reduced by

half

after 10 years at 9%,

also

, farm

waste

was exactly cut by

half

.

Finally

, in 2007, none was recorded from litter.