What term do historians use to describe the growing divide between North and South during the antebellum period?

What do you think should be the most important factor in president considered when picking a supreme court justice

Which of these is not a criticism of the concentric zone model? it does not accurately describe cities after the rise of suburban development. it only applies to cities that grew after the development of the automobile. it assumes that inner-city areas will always be repurposed instead of abandoned. it places too much importance on the traditional central business district.

What mountains did the first transcontinental railroad cross