| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | geological basin | Africa | Geological basins may play a crucial role in the formation of freshwater reservoirs and support agricultural activities. | 1 |
| 2 | geological basin | Africa | Geological basins are often associated with water scarcity and are important for water resource management and agricultural irrigation. | 1 |
| 3 | natural reservoir | Africa | Natural reservoirs are crucial for providing water for agriculture and human consumption. | 1 |