The map shows that the union pacific railroad was able to lay more miles of tracks than the central pacific railroad. why do you think it is?

i think they would live in caves or natural tunnels

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.