Question

He Aleutian Trench is an area where the oceanic Pacific Plate is converging with the continental North American Plate. What can you conclude is happening in this area?

Both plates are moving in the same direction, resulting in little to no activity
Creation of the trench and new seafloor is formed by the plates moving away from each other
Explosions underneath the Earth’s crust have created the trench and frequent earthquakes
The trench is formed by a subduction zone which has also created volcanic islands

Answer 1

The correct answer is: The trench is formed by a subduction zone which has also created volcanic islands.

As all the other trenches on the plate boundaries of the Pacific plate, the Aleutian Trench, on the boundary between the Pacific and the North American plate, has also come to be because of the subduction zone appearing between the two plates.

The lower and heavier Pacific plate is subducting bellow the North American plate, and that results into large deep spaces opening up between the two plates, thus the emergence of the trenches. Also, because the magma from bellow the crust has easy access to the surface, it comes upwards and creates multiple islands with the volcanic activity that it produces.