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What ocean is between the Old World and the New World? *

Answer:
The Atlantic
Explanation:
As Europeans traversed the Atlantic, they brought with them plants, animals, and diseases that changed lives and landscapes on both sides of the ocean. These two-way exchanges between the Americas and Europe/Africa are known collectively as the Columbian Exchange.
Answer:
the Atlantic ocean
Explanation:
the Atlantic is the ocean that separates Europe and the Americas. Europe is the Old world, and the Americas re the New World