Into what four categories does john green break the columbian exchange?

1. Diseases

2. People

3. Animals

4. Plants and crops

Explanation:

The Columbian Exchange led to major changes on both sides of the Atlantic. Through this exchange lot of things were moving between the continents. Some of those things which are separated in four categories are the diseases, people, animals, and plants and crops. The diseases were the negative part of this exchange, resulting in millions of deaths. The movement of people led to change in the demographics of the New World. The animals, plants and crops all had positive effects as they brought lot of benefit to the two sides, like increasing the food production, increasing profit, making the traveling and working on the field easier.