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Columbian Exchange

Columbian Exchange - Columbian Exchange intheworld o...

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Columbian Exchange Columbian Exchange-refers to a biological exchange between the Americas and everywhere else  in the world o For about 10,000 yrs the Americas were cut off from the rest of the world, so biologically they  looked different from the rest of the world o End of ice age, ocean levels rose, and Americas were cut off  All of a sudden in 1492 the two areas of the world came slamming together and there was a  sudden biological exchange that transforms the world (but mostly the Americas)  o Plants Once Europeans begin arriving (send tons of ships to explore Americas) they bring lots of new  plants and introduce them to Americas o Wheat o Grapes o Onions o Sugarcane--became huge cash crop o Peaches  o Grasses (including Kentucky Bluegrass) Some American plants go out to the rest of the world that changes how everyone eats o Potatoes 
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