5.4 How deep are ocean trenches such as the Mariana Trench and the Tonga Trench?
5.4 How deep are ocean trenches such as the Mariana Trench and the Tonga Trench? Between the continental margin and the oceanic ridge lies the deep ocean basin. The size of this region, almost 30% of earth’s surface, is …
5.4 How deep are ocean trenches such as the Mariana Trench and the Tonga Trench? Read more »