| |||
| diffuse Verschmutzungsquelle; diffuse Quelle | |||
|
source diffuse de pollution : 5 phrases in 2 subjects |
| Environment | 3 |
| Natural resourses and wildlife conservation | 2 |
| |||
| diffuse Verschmutzungsquelle; diffuse Quelle | |||
|
source diffuse de pollution : 5 phrases in 2 subjects |
| Environment | 3 |
| Natural resourses and wildlife conservation | 2 |