How did the columbian exchange encourage growth in of the european colonies

The Columbia Exchange was the first major transfer of a plethora of different goods between the New World and the Old World, meaning that it made colonies in the New World more appealing because food and resources were supplied. 

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The columbian exchange improved the European diet by improving its taste. This was done by increasing Old Worlds' abillity to feed more people. This made the colonies seem more appealing to people.

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