The countries not included in the original alliance system were pulled into the war because they had alliances with the countries within the original alliance system. That they promised to be on their side should there ever be a war. However, this caused many conflicts because some countries had alliances with both sides.
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I believe the answer is b
Anthropology is the study of various aspects of humans within past and present societies.[1][2][3] Social anthropology and cultural anthropology[1][2][3] study the norms and values of societies. Linguistic anthropology studies how language affects social life. Biological or physical anthropology[1][2][3] studies the biological development of humans.
Archaeology, which studies past human cultures through investigation of physical evidence, is thought of as a branch of anthropology in the United States,[4] while in Europe, it is viewed as a discipline in its own right, or grouped under other related disciplines such as history.
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The Northern states enjoyed increasing political representation and power born from rapid population growth. Because of the South’s investment in agriculture any attack on slavery, which was witnessed in the North, was an attack on Southern economy itself. Webster viewed slavery as a matter of historical reality rather than moral principle. Congress had prohibited slavery in the Northwest Ordinance of 1787 and divided regions into slave and free in the 1820 Missouri Compromise. Slavery where it existed could not be eradicated but it could not also take root in the newly acquired agriculturally barren lands on the southwest.
