The Mariana Trench is in the _______________ Ocean? General Knowledge Mcqs January 4, 2019March 19, 2019 BILAL KHATTAK0 A. Atlantic B. Arctic C. Antarctic D. PacificRelated posts:Where is the greatest ocean depth found? What is sometimes referred to as the World Ocean? The smallest ocean in the world is: Deapest point in sea is Mariana Trench in ______ Ocean: