The Columbian Exchange
The columbian exchange is the trade from the old world to the new world
The cow came from the old world to the new world for mild an other purposes
tobacco causes mouth cancer an messes up your teeths and this cam from the new world .
coco beans makes chocolate and this is really bitter unless it has sugar and it came from the old world.
sugar cane came from the old world to the new world this was used to make chocolate taste good.