Which of the following describes how and where a trench forms in a plate tectonic setting?

Question

A.
A trench results from rifting and forms outside the rift on whichever plate is higher in elevation.
B.
A trench results from subduction and forms in the volcanic arc on the overriding plate.
C.
A trench results from rifting and forms outside the rift on whichever plate is lower in elevation.
D.
A trench results from subduction and forms on the ocean floor where the two plates meet

Answer 1

The correct answer is:

D. A trench results from subduction and forms on the ocean floor where the two plates meet.

Trenches are typically formed at convergent plate boundaries, where one tectonic plate is being subducted beneath another. This creates deep valleys in the ocean floor known as oceanic trenches.