Oil exploration and oil transportation causes the ocean with spillage of large quantity of oil. Oil tanker accidents, international discharge of oil into sea water are also the reason of marine oil pollution. The various causes of marine oil pollution are:
1. Oil tankers (ship) are one of the major source of oil spills.
2. Oil explorations either onshore or offshore causes release of oil into the ocean from oil wells.
3. Minor oil spills from the oil pipe lines occur very frequently.
4. International discharge of oil into sea water is a recent phenomenon which has occurred during the gulf war.
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