What river forms a natural border between the US and Mexico?By David MillerIn Geography Trivia, Kids Trivia, U.S. TriviaW Red River.Incorrect.Mississippi River.Incorrect.Rio Grande.Correct!The Rio Grande is about 1,800 miles long and may the fourth or fifth longest system in the continent.
Which team in the National Basketball Association has the most championships?In Sports Trivia, U.S. TriviaW
