| km² | Bassin fluvial | % Correct |
|---|---|---|
| 3.7 mil | Congo | 100%
|
| 2.3 mil | Niger | 100%
|
| 77.1 k | Gambie | 91%
|
| 3.3 mil | Nil | 91%
|
| 420 k | Sénégal | 91%
|
| 1.3 mil | Zambèze | 82%
|
| 941 k | Orange | 73%
|
| 407 k | Volta | 73%
|
| 421 k | Limpopo | 55%
|
| 358 k | Okavango | 45%
|
| 549 k | Chari | 36%
|
| 498 k | Jubba | 36%
|
| 224 k | Ogooué | 27%
|
| 99.7 k | Bandama | 18%
|
| 54.0 k | Cross | 18%
|
| 115 k | Drâa | 18%
|
| 78.0 k | Komo | 18%
|
| 150 k | Kwanza | 18%
|
| 54.0 k | Moulouya | 18%
|
| 204 k | Rufiji | 18%
|
| 140 k | Sanaga | 18%
|
| 74.5 k | Sassandra | 18%
|
| 110 k | Awash | 9%
|
| 66.2 k | Barka | 9%
|
| 51.0 k | Batha | 9%
|
| 337 k | Chébéli | 9%
|
| 68.6 k | Ekuma | 9%
|
| 183 k | Komadougou Yobé | 9%
|
| 61.7 k | Kouilou-Niari | 9%
|
| 107 k | Kunene | 9%
|
| 60.8 k | Lúrio | 9%
|
| 55.8 k | Mangoky | 9%
|
| 70.0 k | Nugaal | 9%
|
| 113 k | Okwa | 9%
|
| 86.7 k | Omo | 9%
|
| 95.0 k | Oued Saoura | 9%
|
| 156 k | Ruvuma | 9%
|
| 65.0 k | Saguia el-Hamra | 9%
|
| 106 k | Savé | 9%
|
| 126 k | Tana | 9%
|