The deepest parts of our Ocean is called the Continental Plate. It is very flat and there is almost no hills. Most of the deep sea is in trenches or underwater valleys. There are hydrothermal vents that cover the surface of the Deep sea. These vents provide energy to many forms of life. One organism that depends on this image is the tubeworm. These organisms are made of symbiotic bacteria that all gets its life from the hydrothermal vents.