77.what was the name of the u. s. war between the north and the south?
select one:
a. world war ii
b. war of 1812
c. revolutionary war
d. civil war

78.why does the american flag have 13 stripes?
select one:
a. they represent the 13 military heroes of the revolutionary war.
b. they represent the 13 original colonies.
c. they represent the 13 signatures on the u. s. constitution.
d. they represent the 13 members of the second continental congress.

79.during the cold war, what was the main concern of the united states?
select one:
a. colonialism
b. sectionalism
c. communism
d. imperialism