They are called trenches.
Divergent boundaries create landforms such as rift valleys and mid-ocean ridges. Rift valleys form on continents when land is pulled apart, while mid-ocean ridges develop along the ocean floor as new crust is created.
Yes, the ocean floor can have mountain ridges, valleys, and plains. Mountain ridges are formed by tectonic activity, valleys may be created by the movement of tectonic plates, and plains can result from sedimentation and volcanic activity. These features are important in shaping the ocean floor's topography.
A valley underwater is called a submarine canyon. These can form through a variety of geological processes, such as erosion by underwater currents or the collapse of underwater sediment. Submarine canyons can be important habitats for a diverse range of marine life.
The crust not under the ocean is called continental crust. It is thicker and less dense compared to oceanic crust and forms the landmasses on Earth's surface.
When two Continental plates diverge, landforms like rift valleys and mid-ocean ridges are created. Rift valleys form on land where the plates are separating, while mid-ocean ridges are underwater mountain ranges that form in the ocean.
Sure. The mountains are often tall enough to poke through the surface of the ocean where they are called islands. There are deep valleys under the ocean, too. Some are deep enough that you could put Mount Everest in the ocean into these valleys, and it would be completely covered in water.
Trench. I believe they are known as trenches.
They are called oceanic trenches.
The ocean floor does have underwater mountains called seamounts and undersea valleys known as trenches. These features are created by tectonic plate movements and volcanic activity on the ocean floor.
A map of the ocean is called a topographic map. On a map the oceans surface has highs and lows look similar to the hills and valleys of the Earth's surface.
the ocean-bottom
rift vally on land, and mid-ocean ridge under water
under toe
Trenches
A Structure.
Submarine Canyons
Trenches