What happened in 1867 that allowed the united states to expand its territory

The treaty that ended the war gave the United States a vast stretch of land from Texas west to the Pacific and north to Oregon. ... The United States then owned all the territory of its present states except Alaska (purchased from Russia in 1867) and Hawaii (annexed in 1898).\

the continued presence of American troops increased further and a total of 475,000 were serving in Vietnam and the peace rallies were multiplying as the number of protesters against the war increased.

In 1867 the United States purchased Alaska from Russia, resulting in a great territorial expansion. On top of being a great territorial expansion, many americans praised the acquisition as a mean of weakening both Russia and England as potential rivals to American commerce in the Pacific.

d. it spread christianity. i just took the test and got it right.

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !