Yes, ocean trenches are a long, narrow, deep depression in the ocean bed.
They typically run parallel to a plate boundary.
The Marianas Trench is the deepest part of the world's oceans.
A trench.
Deep Trench in the ocean floor. It can sometimes be mistaken for a mid-ocean ridge.
probably..
Trench
deep ocean trench
deep-ocean trench
deep-ocean trench
True
Trench
It is called a Trench.
I believe it is the Marianas Trench.
trench