Spanish explorers learned about potatoes and sent them back to Europe. Over time, European farmers found potatoes to be an easy-to-grow, nutritious crop. Potatoes allowed European populations to increase as people became healthier and better fed.
Which of the following is the best main idea of the passage?
The Columbian Exchange transformed the way people farmed and ate.
The Columbian Exchange benefited American Indians more than Europeans.
The Columbian Exchange had a harmful impact on the way people farmed and ate.
The Columbian Exchange has not had a lasting impact on the way we farm and eat today.