 |
| |||
| nicht biologisch abbaubar | |||
| non-biodegradable: 12 phrases in 4 subjects |
| Environment | 4 |
| General | 3 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 2 |
|
| |||
| nicht biologisch abbaubar | |||
| non-biodegradable: 12 phrases in 4 subjects |
| Environment | 4 |
| General | 3 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 2 |