Which difficulty did the builders of the transcontinental railroad have to overcome? i'll give you 50 points! answer this right

What enabled the drastic increase in us troop development to vietnam between 1964 and 1965?

What event ensured england safe passage to colonize north america? a) many englishmen desired more religious freedom than the king allowed. b) england's government decided to take advantage of america's wealth of resources. c) england's defeat of the spanish armada in 1588 opened up the seaways. d) cabot claimed the north atlantic coast for england in 1497.

What was the national government’s biggest concern if facing a war, under the articles of confederation? the national government had no national military. the country had grown too large to defend with a small army. the states would not back the federal government. there was no way the states would pay for fighting a war.