Trenches
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 Pacific Ocean basin contains many deep-sea trenches, such as the Mariana Trench, which is the deepest known point in the ocean. These trenches are formed by the subduction of tectonic plates, creating some of the most extreme environments on Earth.
there are three ocean trenches in the Atlantic Ocean
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Ocean ridges and deep ocean trenches force slab pull and slab push to facilitate plate tectonics. The ocean ridges raise the ocean floor pushing the plate toward the trench, which is lower pulling the plate into the subduction zone.
more volcanic activity
Because many years ago large glaciers passed over the plains, eroding the ground on which they tarvelled on, creating deep valleys.
Animals that live in ocean trenches are quite diverse. They range from bacteria and microorganisms to fish, jellyfish, crabs, lobsters, and octopi. More specifically, tubeworms and deep-sea angler fish are two examples.
Besides many different types of sea life, mountains and deep valleys have been found. Some of the valley are as deep as the Grand Canyon and no one knows how it was formed. The Grand Canyon was formed by the Colorado River but we have no idea about the ones on the ocean floors.
The Deep End of the Ocean has 434 pages.
Yes, in many places it is. But like the surface of the earth that you can see, the ocean floor has many different topographies. The ocean floor has mountains, volcanoes, deep valleys, and reefs. There vast areas of vegetation and areas that are devoid of vegetation, often due to how deep they are and how much sunlight penetrates. There are also arctic regions of ocean floor as well as tropical regions. The ocean floor is really as varied as the continents above the water.
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.