Answer: At the time of the exchange, there were contacts with each other, which was disastrous for the natives.
Explanation:
Contacts between Europeans and Native Americans were disastrous for the Indians. Coming to the New World, Europeans brought infectious diseases to which the natives had no immunity. Smallpox, flu, and similar diseases decimated the Indian tribes. A huge number of natives perished, and complete tribes disappeared.
i just took this test and the answer was not A. im sorry it didnt give me the right answer.
D. By posting a well trained army throughout the empire
The United States became more deeply involved in Vietnam in the late 1960s.
Easier travel and trade.. with others outside