Explain the Colombian Exchange at least a paragraph .PLZ HURRY

Mercantilism, an economic theory that rejected free trade and promoted government regulation of the economy for the purpose of enhancing state power, defined the economic policy of European colonizing countries.

Christopher Columbus introduced horses, sugar plants, and disease to the New World, while facilitating the introduction of New World commodities like sugar, tobacco, chocolate, and potatoes to the Old World.

The process by which commodities, people, and diseases crossed the Atlantic is known as the Columbian Exchange.

Explanation:

oil! is what i am assuming

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate