USA HISTORY

Detailed explanation-1: -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.

Detailed explanation-2: -New diseases were introduced to American populations that had no prior experience of them. The results were devastating. These populations also were introduced to new weeds and pests, livestock, and pets. New food and fiber crops were introduced to Eurasia and Africa, improving diets and fomenting trade there.

Detailed explanation-3: -The exchange introduced a wide range of new calorically rich staple crops to the Old World-namely potatoes, sweet potatoes, maize, and cassava. The primary benefit of the New World staples was that they could be grown in Old World climates that were unsuitable for the cultivation of Old World staples.

Detailed explanation-4: -In 1492, Columbus brought the Eastern and Western Hemispheres back together. The resulting swap of Old and New World germs, animals, plants, peoples, and cultures has been called the “Columbian Exchange.”

Detailed explanation-5: -Plants from the Americas transformed life in Europe, Asia, and Africa. They not only changed cuisine and culture but resulted in major economic and environmental shifts. This is because many of the new crops, such as potatoes, sweet potatoes, maize, and cassava, were calorically rich and quickly became staple crops.