| |||
| source de pollution | |||
| émetteur m; source d'émission | |||
|
pollution source : 20 phrases in 4 subjects |
| Environment | 10 |
| Natural resourses and wildlife conservation | 7 |
| United Nations | 1 |
| Water resources | 2 |
| |||
| source de pollution | |||
| émetteur m; source d'émission | |||
|
pollution source : 20 phrases in 4 subjects |
| Environment | 10 |
| Natural resourses and wildlife conservation | 7 |
| United Nations | 1 |
| Water resources | 2 |