Across
- 4. Destroyed by CFC
- 6. pollution Excessive amount of noise causes
- 9. rain Rain that contains harmful pollutants
- 10. Caused by oil spills and factory waste
Down
- 1. The cutting of trees
- 2. breathing problem is caused by _____
- 3. The third R of recycling
- 5. contamination of earth
- 7. Soil erosion can be prevented by
- 8. the gas responsible for green house effect