| Odpowiedź | % Poprawnych |
|---|---|
| Amazonka | 94%
|
| Nil | 70%
|
| Jangcy | 57%
|
| Missisipi-Missouri | 48%
|
| Wołga | 43%
|
| Kongo | 42%
|
| Amur | 37%
|
| Mekong | 30%
|
| Niger | 28%
|
| Jenisej | 27%
|
| Żółta Rzeka | 26%
|
| Lena | 21%
|
| Ob-Irtysz | 21%
|
| Mackenzie | 10%
|
| Parana | 6%
|