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Trenches are the deepest parts of the ocean. Abyssal plains are the flattest parts of the ocean, but not necessarily the deepest. For the record, Marianas Trench is the deepest trench in the world, located near the Philippines.
Abyssal Plain,Ocean Trench,Seamount,and Mid-Ocean ridge
They are: Continental Shelf Continental Slope Abyssal Plain Ocean Deeps
Abyssal Plains
An abyss is intense cold, 0.6 C to 3.5 C, no light, and lots of pressure.A trench is a boundary between two lithospheric plates.
abyssal plains and mid-ocean ridges
An abyss is intense cold, 0.6 C to 3.5 C, no light, and lots of pressure.A trench is a boundary between two lithospheric plates.
Abyssal plain is an underwater plain on deep ocean floor, usually found at depths between 3000 - 6000 meters. Abyssal zone is abyssopelagic layer of pelagic zone. Contains very deep (4,000 to 6,000) benthic communities near bottom of oceans.
The order is continental shelf, continental slope, continental rise, seamount, abyssal plain, mid ocean ridge, and trench
The deep ocean is often called the Abyssal Zone
Continental Shelf, Continental Slope, Continental Rise, Abyssal Plain, Trench, Sea Mounts.
A huge muddy valley that cuts through portions of the abyssal plain is known as a trench. This is one of the many formations which are part of the ocean floor.