| Length (miles) | River | % Correct |
|---|---|---|
| 4,345 mi | Amazon River | 100%
|
| 4,258 mi | Nile River | 100%
|
| 3,902 mi | Mississippi River | 97%
|
| 2,922 mi | Congo River | 87%
|
| 3,917 mi | Yangtze River | 81%
|
| 3,395 mi | Yellow River | 81%
|
| 3,364 mi | Ob River | 65%
|
| 2,763 mi | Amur River | 42%
|
| 3,030 mi | Paraná River | 35%
|
| 3,445 mi | Yenisei River | 29%
|