Paris, london, new york, and tokyo are all significant because a. they are the most populated cities in the world b. they are the largest cities in the world when measured in terms of area c. they are global cities due to their influence in government, culture, and the world economy d. they have the largest economic growth of all cities in the world

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

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congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.