In 1854, the Missouri Compromise was repealed by the Kansas-Nebraska Act. Three years later the Missouri Compromise was declared unconstitutional by the Supreme Court in the Dred Scott decision, which ruled that Congress did not have the authority to prohibit slavery in the territories.
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The answer is C.) Executed rivals and imprisoned dissenters.
Historical for the Chinese.
<span>Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be "All European Nations devastated by Wold War II" since it was these nations that were must vulnerable to a communist takeover. </span>
Copernicus believed that he accomplished his work by combining old and new observations. Copernicus was a mathematician and astronomer who proposed a model of the universe where the Sun is the centre of the universe. He also made many important planetary observations and his work contributed to the Scientific Revolution.