Columbus's landing in the New World marked the beginning of a fraught relationship between Europeans and Native Americans. They exchanged food, animals, plants and cultures in what was called the Columbian exchange. Europe and the "old world" tasted chocolate, potatoes, tomatoes and tobacco for the first time. The people of the New World got to try coffee, tea and lemons and see horses, cows, cats and other domestic animals for the first time.

In addition to bringing goods, the Europeans also brought disease. European diseases like measles and smallpox ravaged the Native American population. The diseases would end up killing up to 90 percent of the Native Americans, who didn't have natural defenses against these potent ailments.

According to the passage, which is a disadvantage of Columbus landing in the New World?

According to the passage, a disadvantage of Columbus landing in the New World was the introduction of deadly diseases to the Native American population, leading to devastating consequences for their health and population.