Your answer is C. agreed to by Congress in 1777; ratified in 1781
Overall, the idea of Manifest Destiny had a strong negative impact on the Native Americans, since its believers thought the US was "destined" to expand from the Atlantic to the Pacific--meaning that thousands of Natives were forced of their land.
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C. Allowing newly added territories to the United States decide for themselves the slavery issue.</span>
Popular sovereignty was proposed as a way to decide the issue of slavery in the new territories. Under such a system, the local population would decide the slavery issue rather than Congress.
15 slave and 15 free states.
The answer to this question is A. Jet streams
Jet streams are located near the altitude of the upper troposphere. It's a movement of wind that travels from one side of the planet hemisphere to another. The movement of jet streams will bring up different temperature of air which could influence the weather that exist in certain regions.
