The pie chart illustrates how numerous kinds of wastes pollutes the specific location of the ocean in 1997 and 2007.
Overall, pollution from domestic sewage and offshore oil increases over the time. By contrast, the proportion of pollutants from air, litter, farm waste, marine, and industrial waste declines in the span of 10 years.
The Ocean contamination from domestic sewage comprised of 18% in 1997, and by 2007 it increased by 11% to 29%. Likewise, the amount of pollution by offshore oil went up by approximately 9% from 5% in the first year to 14% by the final year.
On the other hand, pollutants from air decreased slightly from 30% in 1997 to 29% in 2007. Additionally, marine debris and industrial waste experienced a significant decline from 22% and 17% to 17% and 9%, respectively, during the 10 years period. Furthermore, the remaining categories, such as litter and farm waste contaminated 4% each in 1997 but 10 years later approximately 0% and 2% of pollution came from these sources.