| Reservoir | Volume (km³) | Answer | % Correct |
|---|---|---|---|
| Danjiangkou Reservoir | 51.6 | China | 100%
|
| Bratsk Reservoir | 169 | Russia | 100%
|
| Manicouagan Reservoir | 141.85 | Canada | 93%
|
| Serra da Mesa Reservoir | 54.4 | Brazil | 73%
|
| Bukhtarma Reservoir | 53 | Kazakhstan | 73%
|
| Lake Nasser | 132 | Egypt / Sudan | 53%
|
| Lake Guri | 135 | Venezuela | 40%
|
| Cahora Bassa | 55.8 | Mozambique | 20%
|
| Lake Kariba | 180.6 | Zambia / Zimbabwe | 20%
|
| Lake Volta | 150 | Ghana | 7%
|