How did the columbian exchange affect the americas and europe?

During the Columbian Exchange, which two crops were the most important and why? ... What were some positive and negative results of the Columbian Exchange? positive-European/African foods introduced and American food to Europe/Africa. negative-Native Americans and Africans were forced to work on plantations. read more

From Europe, to the Americas came wheat, rye, barley, oats and millet. The first two crops are used in bread, a mainstay today. The horse was a European import. read more

The Effects of the Columbian Exchange. Learn about the Columbian Exchange, the movement of plants, animals, and disease between the Americas and the rest of the world, in these video segments from Chronoscope: Exploring 1492: “Columbian Exchange." The positive and negative consequences of the Exchange became clear almost immediately. read more