Topic
| Code | 20000424 |
|---|---|
| Name | environmental pollution |
| Description | Corruption of air, water, land etc. by harmful substances |
| Lft | 12 |
| Lvl | 1 |
| Rgt | 23 |
| Code | 20000424 |
|---|---|
| Name | environmental pollution |
| Description | Corruption of air, water, land etc. by harmful substances |
| Lft | 12 |
| Lvl | 1 |
| Rgt | 23 |