One purpose of the Freedmen's Bureau was to assist African Americans in <span>adjusting to freedom and protect their civil rights.</span>
The best answer for this question would be:
Geography and climate determined what kind of crops would be grown, leading to differing structures for economies and settlements.
The settlement of the different colonies were determined by the chosen environment that they were going to live at.
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The Monroe Doctrine (Named after Pres. James Monroe)
B.) Caste System is the correct answer