USA HISTORY

Detailed explanation-1: -Beyond grains, African crops introduced to the Americas included watermelon, yams, sorghum, millets, coffee, and okra.

Detailed explanation-2: -Christopher Columbus introduced horses, sugar plants, and disease to the New World, while facilitating the introduction of New World commodities like sugar, tobacco, chocolate, and potatoes to the Old World. The process by which commodities, people, and diseases crossed the Atlantic is known as the Columbian Exchange.

Detailed explanation-3: -Old World rice, wheat, sugar cane, and livestock, among other crops, became important in the New World.

Detailed explanation-4: -Wheat, tomatoes, chili peppers, and many other foods were transferred between the Old and New Worlds, the Eastern and Western Hemispheres, following Christopher Columbus’s first voyage to the Americas in 1492.