What was a major effect of the Columbian

exchange?

(1) economic collapse in Europe

(2) introduction of new food crops to Europe

(3) decrease in European population

(4) expansion of democratic rights throughout

Europe

Colombian exchange is the exchange of species between the Old World and the New World. This means that some crops were brought to the New World from the Old World, but also some crop species were brough to the Old World (Europe) from New World.

The correct answer is: (2) introduction of new food crops to Europe (for example: potatoes)