Answer:
Due to the Columbian Exchange, Africa's population declined, the Americas flourished with plants from Europe and wealth flowed in the European economy.
Step-by-step explanation:
The Columbian Exchange was the process that took place between the 15th and 16th centuries in which agricultural products, technological advances and other resources of the New World (the American continent) were made known in the Old World (Europe, Africa and Asia) and vice versa. More extensively, it also includes demographic changes and even diseases.