| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | rock salt | Western countries | Used primarily for de-icing roads and sidewalks in winter | 1 |
| 2 | rock salt | western countries | Used for deicing roads during winter | 1 |
| 3 | rock salt | western countries | Used mainly for de-icing roads in winter | 1 |
| 4 | rock salt | western countries | Used for de-icing roads in snowy weather | 1 |