| |||
| seuil de concentration | |||
|
concentration threshold : 2 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 1 |
| |||
| seuil de concentration | |||
|
concentration threshold : 2 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 1 |