How did the railroad affect the expansion of the western frontier after the Civil War?

Conflict resolution can be difficult. which of these is the best example of how the us congress resolves conflict instead of always using a majority vote?

President nixon resigned from office in 1974 after he was informed that the senate would impeach him, as allowed in the constitution, for his actions in the watergate scandal. one of the key reasons that nixon’s actions became public was a) the freedom of press guaranteed by the first amendment. b) the right to confront witnesses as guaranteed by the sixth amendment. c) the limitation of judicial powers as defined in article 3 of the constitution. d) the prohibition against illegal search and seizure as guaranteed by the fourth amendment.

What mountain range is located near 60*n and 60*e