The most important good effect of the Colombian exchange was the development of New World crops, such as potatoes and corn, to the Old World. The most important negative effects were the transmission of African populations into slavery and the exchange of diseases between the Old and New World.
Explanation:
The Colombian trade, otherwise called the Colombian exchange, named after Christopher Columbus, was the across the board move of plants, creatures, culture, human populaces, innovation, infections, and thoughts between the Americas, West Africa, and the Old World in the fifteenth and sixteenth hundreds of years.
Trades of plants, creatures, ailments and innovation changed European and Native American lifestyles. Starting after Columbus' revelation in 1492 the trade kept going during the time of development and disclosure. The Colombian Exchange affected the social and social cosmetics of the two sides of the Atlantic.