| Odpowiedź | % Poprawnych |
|---|---|
| Biebrza | 66%
|
| Brda | 48%
|
| Wisła | 30%
|
| Bzura | 20%
|
| Warta | 19%
|
| Wieprz | 17%
|
| Wisłok | 16%
|
| Noteć | 15%
|
| Wda | 15%
|
| Wisłoka | 15%
|
| Drwęca | 14%
|
| Wkra | 14%
|
| Pilica | 12%
|
| Słupia | 12%
|
| Pisa | 10%
|
| Nogat | 9%
|
| Drawa | 7%
|
| Gwda | 7%
|
| Nysa Kłodzka | 7%
|
| Prosna | 7%
|