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  1. Ocean - Wikipedia

    Yet, the ocean faces many environmental threats, such as marine pollution, overfishing, and the effects of climate change. Those effects include ocean warming, ocean acidification and sea …

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

    Feb 19, 2025 · In addition to the Atlantic, Pacific, Indian, and Arctic, many nations recognize the Southern Ocean, though its boundaries remain disputed.

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

    Oct 9, 2025 · 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, …

  4. Oceans—facts and information | National Geographic

    The ocean is a continuous body of salt water that covers more than 70 percent of the Earth's surface. Ocean currents govern the world's weather and churn a kaleidoscope of life.

  5. All About the Ocean - National Geographic Society

    May 27, 2025 · The ocean offers a wealth of fishing and whaling resources, but these resources are threatened. People have harvested so much fish and marine life for food and other …

  6. OCEAN Definition & Meaning - Merriam-Webster

    The ocean covers most of our planet, regulates our weather and climate, absorbs vast amounts of carbon dioxide, provides most of our oxygen, and feeds much of the human population.

  7. The Global Ocean - NASA Science

    Apr 29, 2025 · The ocean covers about 70% of Earth’s surface and contains 97% of its water. Data collected by NASA’s Earth-observing instruments help scientists understand how Earth’s …

  8. Ocean Facts - Oceanic Society

    Jul 11, 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 …

  9. Know Your Ocean | Ocean Today - National Oceanic and …

    Understanding basic facts about the ocean is important since it affects everything from our atmosphere to our ecosystems. By knowing your ocean, you are better prepared to help …

  10. Why researchers are racing to study the world's ocean : NPR

    Jul 21, 2025 · Scientists are far from knowing all of the complexities of Earth's ocean. With this comic, we explore some of what scientists do know, like its role as one of the world's largest …