| rivier | % Correct |
|---|---|
| Nijl | 96%
|
| Amazone | 93%
|
| Mississippi | 78%
|
| Niger | 49%
|
| Gele | 48%
|
| Mekong | 48%
|
| Jangtsekiang | 40%
|
| Missouri | 39%
|
| Kongo | 33%
|
| Lena | 33%
|
| Ob | 33%
|
| Jenisej | 14%
|
| Amoer | 12%
|
| Mackenzie | 10%
|
| Paraná | 10%
|