Final answer:
The arrival of Europeans in the Americas had a devastating impact on Native Americans due to the introduction of European diseases, leading to widespread epidemics and a significant decline in their population.
Step-by-step explanation:
The arrival of Europeans in the Americas had a significant impact on the Native Americans, particularly through the introduction of European diseases. Native Americans had no immunity to these diseases, such as smallpox, measles, and influenza, resulting in widespread epidemics. Millions of Native Americans died as a result of these diseases, leading to a significant decline in their population and devastating consequences for their communities.
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