| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | rainforest | Global | Crucial part of the Earth's ecosystem, provides oxygen and helps regulate climate | 1 |
| 2 | rainforest | Global | Hot and humid environment with dense vegetation | 1 |
| 3 | use of rainforest resources | Global | Concerns about over-exploitation and deforestation | 1 |