The deepest parts of the ocean floor are caused by plate tectonic subduction and occur where the sea floor sinks back into the mantle in a subduction zone. These areas are called deep sea trenches and the Challenger Deep in the Mariana Trench in the Pacific is the deepest known point in Earth's oceans.
Submarine mountain ranges at the bottom of the ocean are called oceanic ridges or mid-ocean ridges. These are underwater mountain ranges that form along plate boundaries where tectonic plates are diverging or moving apart.
The layer of the ocean extending from the base of the thermocline to the bottom is called the deep zone or deep ocean zone. This region is characterized by consistently cold temperatures and limited sunlight penetration, which affects the marine life and ecosystems found there.
The floor of the ocean is called the seabed or ocean floor. It is made up of different features such as abyssal plains, trenches, ridges, and volcanoes.
At the bottom of the ocean, where pressures are high and temperatures are near freezing, seawater can freeze because of a phenomenon called pressure freezing. Due to the extreme pressure, seawater can reach a temperature below its normal freezing point before it actually freezes. This can create brinicles, which are icicle-like structures that form undersea.
The mid-ocean ridge is the mountain ridge that runs along the bottom of the ocean and is formed by plate tectonics.
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.
And at the top of the ocean, they are called a Giraft.
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.
It is called a haven
It is the atmosphere.
Geologists
A spiny-skinned invertebrate that lives on the ocean bottom floor is called a sea urchin.
There are several herbivores in the ocean most of the are called bottom feeders, like plankton and shrimp.
Submarine mountain ranges at the bottom of the ocean are called oceanic ridges or mid-ocean ridges. These are underwater mountain ranges that form along plate boundaries where tectonic plates are diverging or moving apart.
continental slope
what is the loose material that settles on the bottom of the ocean called