Answer:
Tobacco farming changed the settlement at Jamestown in many ways like- tobacco farming saved Jamestown by ensuring its economic success by becoming the colony's cash crop. As it required lots of land and labor, it sped up the growth of the colony.
Every tribe was different, although certain elements were<span> common to most of the </span>Plains tribes<span>. The true Plains peoples </span>were<span> entirely nomadic,.</span>
The Declaration of Independence was signed on July 4th 1776 and declared our independence from Great Britain
A. Social Darwinism
A quote I found sums this question up, but it'd be better to do some side research.
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"<span>the theory that individuals, groups, and peoples are subject to the same Darwinian laws of natural selection as plants and animals. Now largely discredited, social Darwinism was advocated by Herbert Spencer and others in the late 19th and early 20th centuries and was used to justify political conservatism, imperialism, and racism and to discourage intervention and reform."</span>