Answer:
Native Americans had never been exposed to those diseases.
Explanation:
Public works administration
Answer:
<u>Americans integrated the technologies of the Industrial Revolution into a new commercial economy. Steam power, the technology that moved steamboats and railroads, fueled the rise of American industry by powering mills and sparking new national transportation networks. A “market revolution” remade the nation.</u>
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A: Trainloads of tourists killed buffalo purely for sport.
