Answer:
The Columbian Exchange is the increased food supply of both the Old World and the New World. The natives had presented them with avocados, cacao beans, pepper, tomato, corn, vanilla, wheat, barley, and turnips, olives, peanuts, tobacco, sweet potatoes, pumpkin, quinine, squash , and Cassava.
I had a question like this in my h.w, Hope this helps!
