Q. The Mariana trench located in the Western Pacific Ocean is formed due to which of the following phenomena?
Explanation:
The Marianas Trench (paralleling the Mariana Islands) marks the convergence of the fast-moving Pacific Plate (Oceanic) against the slower moving Philippine Plate (Oceanic). The Philippine Sea Plate is a tectonic plate composed of an oceanic lithosphere that lies beneath the Philippine Sea, to the east of the Philippines. This plate is bordered mostly by convergent boundaries: To the north, the Philippine Sea Plate meets the Okhotsk Plate at the Nankai Trough.