| coun | % Correct |
|---|---|
| Amazon | 100%
|
| Brazil | 94%
|
| Brazil (World's biggest Tributary) | 94%
|
| Congo | 94%
|
| Peru | 94%
|
| China | 88%
|
| Niger | 88%
|
| Russia | 88%
|
| Argentina | 82%
|
| India | 82%
|
| Mali | 82%
|
| Nigeria | 82%
|
| USA | 82%
|
| Venezuela | 82%
|
| Angola | 76%
|
| Bangladesh | 76%
|
| Paraguay | 76%
|
| Uruguay | 76%
|
| Yangtze | 76%
|
| Zambia | 76%
|
| Zimbabwe | 76%
|
| Austria | 71%
|
| Cambodia | 71%
|
| Canada | 71%
|
| D.R. Congo | 71%
|
| D.R.Congo | 71%
|
| Germany | 71%
|
| Hungary | 71%
|
| Laos | 71%
|
| Mekong | 71%
|
| Mississippi | 71%
|
| Mongolia | 71%
|
| Ob | 71%
|
| Pakistan | 71%
|
| Serbia | 71%
|
| Thailand | 71%
|
| Vietnam | 71%
|
| Zambezi | 71%
|
| Benin | 65%
|
| Bulgaria | 65%
|
| Colombia | 65%
|
| Croatia | 65%
|
| Danube | 65%
|
| Ganges | 65%
|
| Indus | 65%
|
| Mozambique | 65%
|
| Myanmar | 65%
|
| Namibia | 65%
|
| Parana | 65%
|
| Romania | 65%
|
| Ukraine | 65%
|
| Ecuador | 59%
|
| Moldova | 59%
|
| Orinoco | 59%
|
| Republic of the Congo | 59%
|
| Slovakia | 59%
|
| Volga | 59%
|
| Lena | 53%
|
| Amur | 47%
|
| Brahmaputra | 47%
|
| Guinea | 47%
|
| MacKenzie | 47%
|
| Yenisei | 47%
|
| 10.080 | 41%
|
| 20.000 | 41%
|
| St. Lawrence River | 41%
|
| 42.000 | 35%
|
| Pearl | 35%
|
| 11.800 | 29%
|
| 12.500 | 29%
|
| 15.000 | 29%
|
| 19.000 | 29%
|
| 19.300 | 29%
|
| 19.600 | 29%
|
| 24.400 | 29%
|
| 30.000 | 29%
|
| 32.500 | 29%
|
| 33.000 | 29%
|
| 35.000 | 29%
|
| 36.500 | 29%
|
| 8.060 | 29%
|
| Ohio | 29%
|
| Rio de la Plata | 29%
|
| 13.500 | 24%
|
| 16.000 | 24%
|
| 18.000 | 24%
|
| 18.600 | 24%
|
| 8.440 | 24%
|
| 8.760 | 24%
|
| 9.500 | 24%
|
| 11.400 | 18%
|
| 17.000 | 18%
|
| 209.000 | 18%
|
| 22.000 | 18%
|
| 28.000 | 18%
|
| 5.500 | 18%
|
| 6.172 | 18%
|
| 6.430 | 18%
|
| 6.600 | 18%
|
| 6.978 | 18%
|
| 7.410 | 18%
|
| 7.500 | 18%
|
| 7.973 | 18%
|
| 8.400 | 18%
|
| 9.873 | 18%
|
| 9.910 | 18%
|
| Columbia | 18%
|
| Meghna | 18%
|
| Rio Japura | 18%
|
| Rio Madeira | 18%
|
| Rio Negro | 18%
|
| Rio Purus | 18%
|
| Rio Jurua | 12%
|
| Kasai | 6%
|
| Padma | 6%
|
| Rio Araguaia | 6%
|
| Rio Napo | 6%
|
| Rio Putumayo | 6%
|
| Rio Tapajos | 6%
|
| Rio Ucayali | 6%
|
| Rio Tocantis | 0%
|
| Westfluss | 0%
|