The ocean is divided in to five dif

The ocean is divided in to five different parts : the Pacific , Atlantic , Indian , Antarctic , and Arctic Oceans . Oceans cover 75 percent of the earth's surface . For centuries , people have been challenged by the mysteries the lie beneath the ocean .Today's scientists now overcome the challenges of the depth by using mordern devices .
SUbmarines can help them to investigate the seabed and bring samples of the marine life back to the surface for further study . We can know a wide range of information including water temperature , depth and the unndersea populations from the satellite photos . Marine plants and animals fall into three major groups , They are those that live on or depend on the bottom like the starfish those the move inndependently of water curents and those that are carried along by the currents .