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| | Atlantic Ocean - Wikipedia, the free encyclopedia |
 | | The ocean floor is dominated by the Mid-Atlantic Ridge, a rugged north-south centerline for the entire Atlantic basin, first discovered by the Challenger Expedition. |
 | | The Atlantic Ocean has irregular coasts indented by numerous bays, gulfs, and seas. |
 | | These include the Caribbean Sea, Gulf of Mexico, Gulf of St. Lawrence, Mediterranean Sea, Black Sea, North Sea, Labrador Sea, Baltic Sea, Gulf of Maine, Bay of Fundy and Norwegian-Greenland Sea. |
| en.wikipedia.org /wiki/Atlantic_Ocean (2349 words) |
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