Which one among the following rivers is the longest?
Reviewed by Dalvoy
UPSC Civil Services preparation
- AAmazonCorrect
- BAmur
- CCongo
- DLena
Explanation
The Amazon River is the longest among the options provided. It is approximately 6400 kilometers long and is widely recognized as the second longest river in the world after the Nile, though some studies suggest it may be the longest.
In comparison, the other three rivers are significantly shorter. The Congo is about 4700 kilometers long, the Amur is approximately 4444 kilometers long, and the Lena is about 4400 kilometers long. Therefore, the Amazon is the clear winner in terms of length.

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