What was the Monroe Doctrine?
A.
a trade agreement between the United States and Mexico
B.
a military treaty between Spain and Mexico
C.
a pact between the United States and Mexico to ward off European invaders
D.
a document and policy aimed at preventing Europe

Space is not completely empty. there are small particles in space. what happens when these particles come together?

Which statement best describes the response by the united states and its allies to the berlin blockade? planes dropped tons of supplies around the city each day. trucks smuggled tons of supplies into berlin about once a week. tons of supplies were delivered to west berlin by boats. tons of supplies were purchased from east berlin each day.

2. what was the significance of the british reform act of 1832? members of the middle class were permitted to run for parliament. members of the working class demanded and received better living conditions. voters were given the right to vote by secret ballot, farm workers, factory workers, and women were given the right to vote.