Of the rivers listed, which river is the longest?

While the choice given as the answer is the Mississippi River, the longest river is actually the Amazon River. The Amazon measures approximately 4,345 miles, while the Nile follows closely behind at about 4,135 miles. The Mississippi River is significantly shorter, at around 2,340 miles, and the Yangtze River measures about 3,917 miles.

The Amazon and Nile are often subjects of debate regarding their lengths due to differing measurement techniques and interpretations of their tributaries. However, current understanding supports the Amazon as the longest river in the world. Recognizing the importance of accurate geographical data is crucial when comparing such rivers.