 |
| |||
| problem of pollution | |||
| pollution aspect | |||
| проблема загрязнения окружающей среды: 13 phrases in 5 subjects |
| Energy industry | 4 |
| Makarov | 5 |
| Mass media | 1 |
| Name of organization | 1 |
| United Nations | 2 |
|
| |||
| problem of pollution | |||
| pollution aspect | |||
| проблема загрязнения окружающей среды: 13 phrases in 5 subjects |
| Energy industry | 4 |
| Makarov | 5 |
| Mass media | 1 |
| Name of organization | 1 |
| United Nations | 2 |