Q. Which is the longest river in the North America?
Answer: Missouri River
Notes: The Missouri River is the longest river in North America. It stretches for about 2,341 miles. Also, it combines with the Mississippi River to form the fourth longest river system in the world.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 35 in Physical Geography - Important Rivers, River Islands, Deltas and Lakes in above course in App.