 |
| |||
| land-based pollution | |||
| land-source pollution | |||
| загрязнение с суши: 6 phrases, 3 sujets |
| Écologie | 2 |
| Ressources naturelles et conservation de la faune | 1 |
| Technologie | 3 |
|
| |||
| land-based pollution | |||
| land-source pollution | |||
| загрязнение с суши: 6 phrases, 3 sujets |
| Écologie | 2 |
| Ressources naturelles et conservation de la faune | 1 |
| Technologie | 3 |