Fueling factories using something other than wood" since this greatly revolutionized production productivity.
Fire helped to bring light during the night, it brought warmth during the cold seasons and could cook food. Helping to make permanent civilizations because they didnt have to migrate when it is cold.
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Because the Native Americans were not introduced to European diseases on their own homeland.
Their immune systems were exposed to European Diseases that they never were in contact with before, which caused sickness. Without today's medicine, they were basically helpless and left to die from the exposed diseases.
Answer:1
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The answer is
A. By leading settlers across the Appalachians.
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