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The terms "the ocean" or "the sea" used without specification refer to the interconnected body of salt water covering the majority of Earth's surface, i.e., the world ocean. [9][10] It includes the Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic oceans. [20] As a general term, "the ocean" and "the sea" are often interchangeable. [21] Strictly speaking, a "sea" is a body of water ...
This article is also available in Spanish. The ocean covers 70 percent of Earth 's surface. It contains about 1.35 billion cubic kilometers (324 million cubic miles) of water, which is about 97 percent of all the water on Earth. The ocean makes all life on Earth possible, and makes the planet appear blue when viewed from space. Earth is the only planet in our solar system that is definitely ...
Ocean, continuous body of salt water held in enormous basins on Earth’s surface. There is one ‘world ocean,’ but researchers often separate it into the Pacific, Atlantic, Indian, Southern, and Arctic oceans. Covering nearly 71 percent of Earth’s surface, the oceans have an average depth of 3,688 metres (12,100 feet).
The ocean is essential to life on Earth. It covers more than 70% of our planet and holds 96.5% of all water. It regulates our climate, generates half of Earth's oxygen, and is home to millions of species. Dive into fascinating facts about ocean wildlife and ecosystems while learning what’s at stake and how you can help protect them