| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | freon | Tropical countries | Freon is not commonly used due to its harmful effects on the ozone layer and the environment, and alternative refrigerants are more popular. | 1 |
| 2 | freon | Tropical countries | Freon is a known contributor to ozone depletion and is being replaced with alternative refrigerants in an effort to protect the environment. | 1 |
| 3 | greenhouse | Tropical countries | Greenhouses are uncommon due to the naturally warm climate and are not commonly used for agricultural purposes. | 1 |
| 4 | greenhouse | Tropical countries | Used to control humidity and temperature for sensitive plants in hot climates | 1 |
| 5 | greenhouse | tropical countries | Used to create a cooler environment for plants to thrive in hot climates | 1 |