| Długość rzeki w km | Odpowiedź | % Poprawnych |
|---|---|---|
| 3766 | Missisipi | 98%
|
| 3767 | Missouri | 91%
|
| 3051 | Rio Grande | 74%
|
| 2330 | Kolorado | 71%
|
| 3185 | Jukon | 66%
|
| 4241 | Mackenzie | 55%
|
| 1953 | Kolumbia | 35%
|
| 2334 | Arkansas | 28%
|
| 1920 | Peace | 6%
|
| 2080 | Red River | 5%
|