Ocean Currents

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Currents are cohesive streams of seawater that circulate through the oceans. Some are short-lived and small, while others are vast flows that take centuries to complete a circuit of the globe.  NOAA

All oceans are interconnected through ocean currents.  The world's oceans are not separated by walls. You can sail a boat from one ocean into the next and you might not notice the change if you weren't looking at your chart! Most maps don't draw boundaries around oceans and water certainly doesn't know where the borders are!