I believe the Sino-Japanese War.
Answer:
false
Explanation:
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The answer is going to be B. The native people lacked natural immunities.
The Europeans, having already been exposed to these diseases, had already built up their immune system to the diseases. The native people, on the other hand, had not been exposed to these diseases, and thus died because of it.
I hope this helps!
The Hudson River in New York and the Delaware River in Philadelphia both had ports so trader could sell their goods to England or other places.
