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  1. Ocean - Wikipedia

    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, …

  2. Ocean | Definition, Distribution, Map, Formation, & Facts | Britannica

    Dec 22, 2025 · However, those conducting oceanic research generally recognize the existence of five major oceans: the Pacific, Atlantic, Indian, Southern, and Arctic oceans. Arbitrary boundaries …

  3. How Many Oceans Are There In The World? - WorldAtlas

    Feb 19, 2025 · For much of recorded history, Earth was said to have four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, many countries—including the United States —now recognize …

  4. How many oceans are there? - NOAA's National Ocean Service

    Jun 16, 2024 · While there is only one global ocean, the vast body of water that covers 71 percent of the Earth is geographically divided into distinct named regions. The boundaries between these regions …

  5. Ocean Facts - Oceanic Society

    Sep 4, 2025 · Learn about the ocean and its inhabitants, from sea turtles to whales. The ocean is essential to life on Earth. It covers more than 70% of our planet and holds 96.5% of all water. It …

  6. All About the Ocean - Education

    May 27, 2025 · Although the ocean is one continuous body of water, oceanographers have divided it into five principal areas: the Pacific, Atlantic, Indian, Arctic, and Southern Oceans.

  7. Oceans—facts and information | National Geographic

    The vast bodies of water surrounding the continents are critical to life on Earth. But overfishing and global warming threaten to leave oceans barren.

  8. Map of the Oceans: Atlantic, Pacific, Indian, Arctic, Southern

    Map of Earth's Five Oceans: Although there is only one global ocean, geographers have divided it into five major regions (which are also called "oceans"). They are: the Atlantic Ocean, the Pacific Ocean, …

  9. UN Atlas of the Oceans: Facts

    Covering about 70% of the earth's surface, the oceans are a highly productive system which continuously recycles chemicals, nutrients and water through the 'hydrological cycle', which powers …

  10. Oceans of the world - BBC Bitesize

    What are the five oceans of the world? Oceans are large bodies of salt water. They cover about two thirds of the Earth. There are five oceans: The Pacific Ocean The Atlantic Ocean The Indian...