In retaliation for the actions of the united states concerning its support of israel, in 1973 opec countries ceased exporting oil to the united states. which term refers to one nation or group of nations isolating another nation by stopping trade?
a) blockade
b) boycott
c) embargo
d) quota

Two of these describe “federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a “unitary” and a “confederate” system.