does anyone have examples on how the formation of the european union and the columbian exchange different?
Common ground was that both were essentially done for money.
Read widely and take good notes:
https://www.google.com/search?q=formation+of+european+union&oq=formation+of+european+union&aqs=chrome..69i57j69i60l2.10175j0j7&sourceid=chrome&ie=UTF-8
and
https://www.google.com/search?q=columbian+exchange&oq=columbian+exchange&aqs=chrome..69i57j69i60.1130j0j7&sourceid=chrome&ie=UTF-8