Which of the following trenches represents the deepest oceanic depression on Earth, formed by the subduction of the Pacific tectonic plate beneath the Mariana Plate?

💡 Solution & Explanation

The Mariana Trench, located in the western Pacific Ocean, contains the Challenger Deep, which is the deepest known point in Earth's oceans, descending to nearly 11,000 meters below sea level. It is created at a convergent plate boundary where the older, denser Pacific plate subducts beneath the smaller Mariana plate. The Java Trench is located in the eastern Indian Ocean near Indonesia. The Puerto Rico Trench lies in the Atlantic Ocean. Deep oceanic trenches are characterized by high hydrostatic pressure and absence of sunlight.