Multiple choice general knowledge What is the deepest point in the Earth's oceans? Mariana Trench South Sandwich Trench Central Basin Sigsbee Deep Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Mariana Trench in the western Pacific Ocean is the deepest point in Earth's oceans, reaching approximately 36,000 feet (about 11,000 meters) at its deepest point, the Challenger Deep.