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Columbian Exchange
Worksheet
Grade Level
World History
10.51 Columbian Exchange
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Which cause-and-effect relationship best explains why the Columbian Exchange accelerated after 1492?
A
Atlantic voyages stopped after 1492 -> organisms moved repeatedly without ships or settlements
B
Sustained Atlantic voyages and colonization linked previously separated ecosystems -> organisms moved repeatedly between hemispheres
C
Previously separated ecosystems were already identical -> exchange caused no biological change
D
Colonization banned plants and animals on ships -> only ideas could cross the Atlantic
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