Final answer:
The Columbian Exchange had both positive and negative impacts. One positive impact was the exchange of crops such as potatoes, corn, and tomatoes. One negative impact was the introduction of European diseases to the Native Americans.
Step-by-step explanation:
The Columbian Exchange had both positive and negative impacts on the world. One positive impact was the exchange of crops such as potatoes, corn, and tomatoes from the New World to the Old World. These crops significantly expanded the food supply and improved nutrition.
On the other hand, one negative impact was the introduction of European diseases to the Native Americans, who had no immunity to these diseases. This resulted in a significant depopulation of the Native American population.