Explain the events that forced the United States to enter WWI

Japanese blowing up the harbor, and starting the war

Explanation:

Japan decided to attack the us harbor around the beggining of WWI and the us attacked as well. the war raged on and on for years until finally the us won.

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i believe the answer is:

~b. the elastic clause gives the supreme court original jurisdiction in a limited number of cases.

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hold on ill go look