Answer:
The main damange that the arrival of Columbus caused to the Native American civilizations was the spread of Eurasian diseases like measles or viruela, for which the Native Americans did not have antibodies.
These diseases were very contagious, and quickly spread among the Native populations all over the Americas, from Canada to South America, killing about 90% of the pre-columbian population.
Primary sources are sources that are reliable and that were written from someone that was alive and presenced the event. Your answer would be D!
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the answer to this question would be false
