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Atlantic Ocean - Wikipedia
Atlantic Ocean | Definition, Map, Depth, Temperature, Weather,
Atlantic Ocean - WorldAtlas
OSPAR Convention | UNEP - UN Environment Programme
Atlantic Ocean - The World Factbook
The Atlantic Ocean—facts and information - National Geographic
North Sea | Definition, Location, Map, Countries, & Facts
North Atlantic Ocean | region, Atlantic Ocean | Britannica
North Sea - WorldAtlas
How big is the Atlantic Ocean? - NOAA's National Ocean Service