Top 10 longest rivers in the world

Can you name them all?

Quiz by Celloninja

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Last updated: February 2, 2015

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First submitted	February 2, 2015
Times taken	123

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Length	River
4,180 mi.	Nile
3,912 mi.	Amazon
3,710 mi.	Mississippi-Missouri
3,602 mi.	Chang Jiang
3,459 mi.	Ob

Length	River
2,900 mi.	Huang Ho
2,800 mi.	Yenisei
2,795 mi.	Parana
2,758 mi.	Irtish
2,716 mi.	Zaire

CardinalSin

level 69

Oct 8, 2018

Given that the Irtysh is the principal tributary of the Ob (as the Missouri is of the Mississippi), is it right to consider it as a separate river? The Ob wouldn't be in 5th place without the Irtysh.