It would be A. Examples of civilizations in the Arabian Peninsula hope his helps
Failed compromises--Missouri Compromise, Wilmot Proviso, Compromise of 1850, Kansas-Nebraska Act
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After the gaining of land following the Mexican-American War, the Missouri Compromise was thrown out. After that was a series of compromises put into place which essentially was putting a band-aid on a bullet wound. Each pushed off the issues of slave v. free states until the election of 1860. <span />
<span>the middle united states has more rapid changes in temperature than the western united states.</span>
The answer is A, natural selection.
