Across
- 4. - Water with pollutants discharged into natural waterways. (13 letters)
- 7. - Pollution related to air. (8 letters)
- 8. - Material that takes a long time to decompose in nature. (6 letters)
Down
- 1. - Trees that suffer from acid rain. (5 letters)
- 2. - Often polluted by construction and erosion. (5 letters)
- 3. - Native animals affected by habitat destruction. (7 letters)
- 5. - Algal blooms caused by excess nutrients in the water. (7 letters)
- 6. - Substances that harm ecosystems. (10 letters)