How the Mariana Trench was formed

From the History Channel’s “How The Earth was Made” S01 E02, this is how the Mariana Trench was formed. From Wikipedia: The Mariana Trench is the deepest part of the world’s oceans, and the lowest elevation of the surface of the Earth’s crust. It is located in the western Pacific Ocean, … Continue reading How the Mariana Trench was formed