please discuss, in detail, both the short and long term impacts of the transcontinental railroad on the united states. in order to be considered for full credit, your answer must include at least six impacts: three short term and three long term. as usual, critical thinking is of paramount importance. your answer should not be in paragraph form, but rather, list the impact and then discuss its significance (see format below). be sure to note whether it is a short term impact or a long term impact. the more detailed and insightful your responses, the more points you will earn. in other words, if you list the imp