The .ppt provides slides representing : 1. How Marine pollution changed the beauty of world. \n 2. Causes & Effects of : a.Toxic Ocean Pollutants. b.Marine Garbage. c.Sewage Disposal in Ocean. d.Non-Point Pollutants. 3.Origin. 4.Conventions to prevent it. 5.Various prevention measures: a.Green infrastructure approach. b.Septic tank. c.Dissolved air flotation. d.Urban runoff. 6.Conclusion. Regards to all.