The chart shows that the percentage of pollutants in 1997 and 2007 which is particular part of ocean. There are a huge changing between the ocean in 1997 and 2007. Such as, the pollutants in 2007 becomes more decreased compared to the ocean in 1997.
Firstly, the most highest percentange is pollutants from air (30) in 1997 and the lowest percentage is litter (0) in 2007. Then, it is found that the similarilty of pollutans in 1997 which is litter and farm waste are both have the same percentage (4).
Besides that, the pollutants from air in 1997 and 2007 does not have a big change. Unlike the domestic sewage, offshore oil and the industrial waste. The pollutants has nearly half changing over the year.
Overall, there was hardly any change between 1997 and 2007. The farm waste gradually decreasing and same goes to marine. Besides, that this change occurred by 50% because the period from 1997 to 2007 was relatively long.
