2 Using Source 3, which statement explains how the expansion of the
railroads most likely affected the U. S. economy during the late 1800s?

yes they have. but is this a true false question? if it is, the answer is true.

what was the significance of the plessy vs ferguson ruling and jim crow laws

answer the impact. plessy v. ferguson allowed 'separate but equal, also known as segregation, to become law in the united states

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers