Only 5% Of The Population Can Score 100% On This Geography Quiz—How Well Do You Know The World?
Which country shares the longest border with the United States?
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The U.S.-Canadian border stretches 5,525 miles. This makes it the longest international boundary in the world. It spans eight Canadian provinces and territories, along with 13 U.S. states.
Which country shares the longest border with the United States?
- Canada
- Alaska
- Russia
- Mexico
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