| Długość rzeki w km | Odpowiedź | % Poprawnych |
|---|---|---|
| 7040 | Amazonka | 100%
|
| 4700 | Parana | 64%
|
| 2896 | Sao Francisco | 35%
|
| 3230 | Madeira | 18%
|
| 2816 | Japura | 5%
|
| 3270 | Purus | 5%
|
| 2850 | Tocantins | 5%
|
| 3280 | Jurua | 3%
|
| 2640 | Araguaia | 2%
|
| 2500 | Pilcomayo | 2%
|