Longest Tributaries of the Amazon River

Can you name the 10 tributaries that flow into the Amazon river by length?
Excluding Amazon River itself
According to Wikipedia
Quiz by
Aaron197
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Last updated: December 15, 2020
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First submittedDecember 15, 2020
Times taken76
Average score40.0%
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Length (km)
Tributary
3,250
Madeira
3,211
Purus
2,820
Japurá
2,639
Tocantins
2,627
Araguaia
2,400
Juruá
2,250
Negro
1,992
Tapajós
1,979
Xingu
1,900
Ucayali
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1 Comments
+1
Level 21
Sep 1, 2025
Tocantins and Araguaia are a different basin. not tributaries