When it comes to rivers, longest doesn't necessarily mean biggest, and length can be difficult to determine, so the top spot will always be debated.
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The 9 Longest Rivers in the World: From the Nile to the Congo
Earth Science, HowStuffWorks
About Jesslyn Shields
The 9 Longest Rivers in the World: From the Nile to the Congo
The 9 Longest Rivers in the World: From the Nile to the Congo
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Earth Science, HowStuffWorks
About Jesslyn Shields
Geophysics, HowStuffWorks
Earth Science, HowStuffWorks
HowStuffWorks - Learn How Everything Works!