 |
| land -based pollution: 22 phrases in 8 subjects |
| Ecology | 9 |
| Energy industry | 1 |
| Environment | 1 |
| Name of organization | 1 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
| United Nations | 7 |
| Water supply | 1 |
|
| land -based pollution: 22 phrases in 8 subjects |
| Ecology | 9 |
| Energy industry | 1 |
| Environment | 1 |
| Name of organization | 1 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
| United Nations | 7 |
| Water supply | 1 |