| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | biological agent | Africa | Biological agents can also be associated with agricultural practices and the use of natural fertilizers. | 1 |
| 2 | biological agent | Africa | Biological agents are frequently encountered in agriculture and are utilized for pest control or fertilization purposes. | 1 |
| 3 | biological agents | Africa | Biological agents are often encountered in natural environments and traditional medicine practices. | 1 |