Well it varied according to time and place but,
<span>Many military personnel who opposed their regime would be killed and political opponents and thousands of others who spoke out against them were sent to the Gulag, a high security labor prison where many died during or shortly after release.</span>
D. mound builders
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Popular sovereignty, or sovereignty of the peoples' rule, is the principle that the authority of a state and its government are created and sustained by the consent of its people, through their elected representatives (Rule by the People), who is the source of all political power.
Answer:
American Indians before European contact; Part iii: Indian ... native peoples began to concentrate settlements near streams and rivers, ... 700 a.d.), an important American Indian cultural tradition known as the ... example of a mound that was at the heart of a town site built by Mississippian people.
Explanation: