The Colombian Exchange was the global transfer of foods, plants, and animals during the colonization of the Americas. Goods like tomatoes, potatoes, corn, beans, pineapples, and tobacco had never before been seen in Europe. The Americas also saw new goods like onions, grapes, wheat, bananas, and animals like horses and pigs.
Triangular trade was the transfer of manufactured goods from Europe to Africa for slaves and were then brought accross the Atlantic and sold in the West Indies to be used as slaves to farm and make goods which where then brought back to Europe. The Middle Passage is the parth of the triangular trade which brought Africans accross the Atlantic to the Americas. The Americas used Africans as slaves instead of the natives because the Africans had been exposed to European diseases, they didn't know the land, and they stood out in the Americas.