- Ocean - Wikipedia
Oceans are thought to have formed in the Hadean eon and may have been the cause for the emergence of life Plate tectonics, post-glacial rebound, and sea level rise continually change the coastline and structure of the world ocean
- How Many Oceans Are There In The World? - WorldAtlas
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 the Southern (Antarctic) Ocean as the fifth
- Ocean | Definition, Distribution, Map, Formation, Facts | Britannica
However, those conducting oceanic research generally recognize the existence of five major oceans: the Pacific, Atlantic, Indian, Southern, and Arctic oceans Arbitrary boundaries separate these bodies of water, but they are largely defined by the continents that frame them
- Ocean Facts - Oceanic Society
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 regulates our climate, generates half of Earth's oxygen, and is home to millions of species
- 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
- All About the Ocean - National Geographic Society
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
- Oceans - WWF
Our oceans cover over 71% of our planet Yet we know more about the surface of the moon than the ocean floor What defines an ocean? Oceans are far more than endless horizons and crashing waves
- Ocean - New World Encyclopedia
Five oceanic divisions are usually reckoned: Pacific, Atlantic, Indian, Arctic, and Southern; the last two listed are sometimes consolidated into the first three An ocean (from Ωκεανός, Okeanos (Oceanus) in Greek) is a major body of saline water, and a principal component of the hydrosphere
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