Why did the Native American Indian population change so much ?

Tragically, when the Europeans came to the Americas, they brought diseases that the natives were not yet exposed to. Therefore, many Native Americans died from these diseases. Those who survived the diseases were often mistreated by the Europeans. Some were made slaves, others fled west, etc.

answer: i think it might be the last one

explanation:

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question - in the 1900s there were two competing views about the environment that often pitted industrialist and conservationist against one another. how were these two competing views demonstrated by the environmental policies of president roosevelt and president taft?

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