U.S. Geography

In which U.S. state includes the cities of Columbus, Cleveland, Cincinnati and Dayton?

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What is intersection of interstate highways I-25 and I-70 called in Denver?
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If you went to Ted Stevens Anchorage International Airport, what state would you be in?
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Which is the highest mountain in New England?
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Nebraska with a land area of 76878 square miles is ranked here compared to other states in total land area?
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In what state is Natrona County International Airport located?
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What hit animated TV series is base in a fictional town in Rhode Island?
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Which of the following is Illinois' largest inland water system?
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