| rzeka | % Poprawnych |
|---|---|
| Nil | 97%
|
| Amazonka | 96%
|
| Missisipi | 83%
|
| Jangcy | 78%
|
| Kongo | 77%
|
| Niger | 66%
|
| Huang He | 64%
|
| Lena | 62%
|
| Missouri | 62%
|
| Ob | 59%
|
| Mekong | 50%
|
| Amur | 41%
|
| Parana | 38%
|
| Jenisej | 37%
|
| Mackenzie | 33%
|