The united states bought alaska in 1867 to

a. keep russia from expanding toward the us mainland.
b. stop other countries from taking over the territory.
c. control the territory’s abundance of resources.
d. open a critical trade route with the far east.

How did the mexican war of independence differ from the american revolution? o a. only the american revolution was concerned with establishing a representative form of government. o b. only the mexican war of independence required military conflict to achieve its objectives. o c. only the american revolution succeeded in replacing a monarchy with another form of government. o d. only the mexican war of independence eliminated spanish colonial control over part of north america.