Which of the following are forms of pollution that affect Earth’s outermost layers of atmosphere?

a. Destruction of the ozone layer
b. Smog and acid rain
c. River and ocean pollution
d. Contamination with greenhouse gases


a. Destruction of the ozone layer
d. Contamination with greenhouse gases

Political Science

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The idea of collective security failed because of all of the following except

a. European fatigue with war following World War I. b. isolationism. c. the hope that others would deal with German expansion. d. disintegration of the British Empire.

Political Science

Nigerian federalism has impeded the establishment of democracy because

a. it has separated national from local politics. b. it has reinforced ethnic cleavages. c. it has given more of the important cultural/linguistic groups a home "territory". d. local elections have preceded national elections. e. government services are delivered more efficiently.

Political Science

Out of World War II emerged two superpowers, the United States and the Soviet Union, which became locked in a half-century struggle of indirect hostilities. This struggle was referred to as ________________

A) the Communist resistance B) American expansionism C) the Russo?European War D) the Cold War E) the East?West alliance

Political Science

In the United States, the views of the political elite are most strongly influenced by _____

a. lobbyists b. public opinion polls c. their knowledge and education d. the traditions of American political culture

Political Science