Our oceans are becoming extremely (1)................Most of this pollution comes from the land, (2)..................means it comes from people. Firstly, there is raw sewage, which is pumed directly into the sea. Many (3).............., both developed and developing, are guilty of doing this. Secondly, ships drop about 6 millions tons of garbage into the sea each year. Thirdly, there are oil spills from ships. A ship has an accident (4).......................oil leaks from the vessel. This not only pollutes the (5)...............but it also kill marine life. Next, there waste materials from factories. Without proper regulation, factory owners let the waste run directly into the (6)........................, which then leads to the sea. And finslly, oil is (7)..............from land. This can be the result of (8).................or a deliberate dumping of waste
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