Final answer:
One negative legacy of the Age of Imperialism was the harm caused to the people of Africa, Asia, and the Pacific Islands through the spread of diseases, creation of arbitrary borders, and economic exploitation.
Step-by-step explanation:
One of the negative legacies of the Age of Imperialism was the harm caused to the people of Africa, Asia, and the Pacific Islands. The introduction of infectious diseases by European and U.S. visitors resulted in high death rates in these regions. Additionally, imperial powers imposed arbitrary borders and divided existing kingdoms and tribes, leading to ethnic divisions and conflicts that continue to this day. Furthermore, the economic exploitation of colonies left many countries in the Global South with poorly developed industries and high levels of government corruption.