The bottom of an ocean is typically called the seafloor. Although the seafloor can have variant geographical features such as mountains or volcanos, a normal, and flat terrain is called the seafloor.
The land at the bottom of the sea or ocean can be the sea floor or ocean floor.
Challenger deep.
Atlantis, but it's mythological.
Sea bed
the ocean-bottom
The bottom of the ocean that is slimy is called a biogenous bottom. Some scientists refer to this kind of ocean bottom as an ooze. They are the result of a dominance of calcium shells and siliceous shell pieces which dissolve at the bottom of the ocean.
mid-ocean ridges
And at the top of the ocean, they are called a Giraft.
It is called a haven
It is the atmosphere.
Geologists
There are several herbivores in the ocean most of the are called bottom feeders, like plankton and shrimp.
Echinoderm
continental slope
what is the loose material that settles on the bottom of the ocean called
Animals and plants that live on the oceam bottom are called benthos. they are also normally dead people