Question

Ocean trenches are most often formed when

A) two continental plates slide past each other.
B) an oceanic plate goes under a continental plate.
C) two oceanic plates grind past each other along transform faults.
D) two oceanic plates hit each other causing both plates to rise up.

Answer 1

B) An oceanic plate goes under a continental plate.

Step-by-step explanation:

All of these are technically not the correct answer, the real answer would be something on the lines of: "An old dense plate pushes a lighter weight plate causing an ocean trench." But since that isn't an option, the best one would be an oceanic plate that goes under a continental plate.

Answer 2

B oceanic places goes underneath a contential plate