Yes, generally speaking it is true that historical geology is primarily the history of the earth's crust, although the ramifications are somewhat wider in that the discipline takes into account things that happened due to the crust's changes as well.
Pretty sure it's B because they gained support in the civil war
Answer:
The expansion and immigration of the late 1800s merged with this industrialization to provoke the growth of American urban society. As the needs of industrial workers became ever more important, the national political scene became dominated by the discrepancy in needs between America's rural and urban populations, as well as the needs of the new classes created by industrialization and the abolition of slavery.
