Final answer:
The Mariana Trench was created by oceanic-oceanic plate convergence.
Step-by-step explanation:
The plate movement that created the Mariana Trench, the deepest point on Earth, is called oceanic-oceanic convergence.
In this type of plate tectonic boundary, two oceanic plates collide. When one of the plates, usually an older and denser plate, starts to subduct beneath the other, it creates a trench, such as the Mariana Trench.
This process is a result of the movement of the Pacific plate and the Mariana plate in the western Pacific Ocean.
Learn more about Plate tectonics