Oceans

The video discusses the vastness and mystery of Earth's oceans, highlighting that the Pacific, Atlantic, Indian, and Arctic are regions of a single global ocean. It introduces the debate over the Southern Ocean's designation. Despite covering 97% of Earth's water, over 80% of the ocean remains unexplored, with more known about the Moon and Mars. Oceanographers have discovered underwater mountains and trenches, such as the Mariana and Philippine trenches, which are deeper than Mount Everest is tall. The ocean's biodiversity is immense, with over 225,000 known species and potentially millions more undiscovered.

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