 |
| |||
| quality environment (ssn) | |||
| качественная окружающая среда: 4 phrases in 4 subjects |
| Ecology | 1 |
| Environment | 1 |
| Natural resourses and wildlife conservation | 1 |
| Water supply | 1 |
|
| |||
| quality environment (ssn) | |||
| качественная окружающая среда: 4 phrases in 4 subjects |
| Ecology | 1 |
| Environment | 1 |
| Natural resourses and wildlife conservation | 1 |
| Water supply | 1 |