Describe the effects of the exchange on the Americas and on the Old World. Consider its effects on culture, the economy, the environment, and society.

The so-called Columbian exchange made total revolution when it comes to different areas. Both America and Old World exchanged different agricultural products, which enabled maritime trade to be one of the most important labors in the world. Additionally, Christianity and customs were spreading from Europe to America, and many people adopted this "new beliefs" although some tried to impose them. This also led to frequent migrations, especially from Europe to Americas, which of course changed the social structure of the Continent.

Explanation:

The discovery of new continent of Europeans totally changed the perspective of the world at the time. Europeans were introduced to a large number of new   agricultural products, which totally changed the diet of Europeans, and of course enabled them to live longer.  What is also important that on the other hand Europeans brought many diseases to America, including smallpox, that reduced the population of Natives.

the answer is a) to be able to obey them.