Автор работы: Пользователь скрыл имя, 17 Декабря 2013 в 18:15, доклад
At the ocean bottom at a depth of three kilometers pressure three times greater than the top. Marine snow need many months to get down on the seabed surface. Away from the rocky coast of continents , the bottom of the world ocean stretches for thousands of kilometers and gradually sinks down .
On the seabed , in the sludge are seen faint traces , signs that even here there is life . Who are the inhabitants of the seabed ?
Underwater and on the ocean floor is rich and diverse. So , sea urchins sitting on the ocean floor , screened sludge deposits . Shrimp, elegantly standing on tiptoe , fastidiously plucked pieces of food that come across them .