| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | cyanide | Tropical countries | Cyanide may be less commonly known and its lethal effects are not widely discussed in everyday life. | 1 |
| 2 | cypermethrin | Tropical countries | Cypermethrin is commonly used to control mosquitoes and other insect pests in order to combat tropical diseases such as malaria and dengue fever. | 1 |
| 3 | hydrocyanic acid | tropical countries | Hydrocyanic acid may be found in certain tropical plants which are used in traditional medicine or rituals. | 1 |