Answer:
Europeans introduced horses, livestock, guns and the wheel to native society.
Europeans brought back native crops (potato, corn, beans, etc) to Europe leading to better nutrition.
Explanation:
Columbian Exchange refers to the meeting of new world or western hemisphere of Earth that is America with old world or eastern hemisphere, consists of Europe, Africa, and Asia.
With this Columbian exchange, there was some positive and some negative aspects. positive aspects of columbian exchange include:
Negative aspects include: