| River | % Correct |
|---|---|
| Nile | 100%
|
| Mississippi | 98%
|
| Amazon | 93%
|
| Danube | 93%
|
| Yangtze | 91%
|
| Yellow | 91%
|
| Congo | 88%
|
| Volga | 88%
|
| Niger | 86%
|
| Murray | 79%
|
| Zambezi | 79%
|
| Rio Grande | 77%
|
| Yukon | 77%
|
| Ob | 74%
|
| Amur | 67%
|
| Paraná | 67%
|
| Dnieper | 65%
|
| St. Lawrence | 63%
|
| Yenisei | 63%
|
| Mackenzie | 60%
|
| Don | 51%
|
| Ural | 37%
|
| Tocantins | 23%
|
| Madeira | 21%
|
| Ubangi | 21%
|
| Cooper | 14%
|
| Murrumbidgee | 14%
|
| Purús | 14%
|
| Warburton | 9%
|
| Lachlan | 7%
|