1. Water pollution
2. Petroleum products are the most dangerous problem of the World Ocean.
3. There are about 2000 drilled oil wells in the oceans
4. Oil pollution cause very terrible damage to the nature.
5. Rare species of fishes, mollusks and algaes dissapears.
6. Oil is not soluble in water, it's a huge problem.
7. In the beginning, oil spots are in surface of water.
8. Then oil settles to the bottom and stays there forever.
english
ecology
