| Km de río | Continente | Río | % Correcto |
|---|---|---|---|
| 7.062 | América del Sur | Amazonas | 100%
|
| 6.853 | África | Nilo | 98%
|
| 6.275 | América del Norte | Misisipi | 74%
|
| 6.300 | Asia | Yangtsé | 48%
|
| 4.880 | Asia | Mekong | 39%
|
| 5.410 | Asia | Obi | 28%
|
| 4.444 | Asia | Amur | 24%
|
| 5.464 | Asia | Río Amarillo | 17%
|
| 5.539 | Asia | Yeniséi | 17%
|
| 4.700 | África | Río Congo | 13%
|