Across
- 4. contaminant in natural environment
- 6. fuels burning _______ is the cause of air pollution
- 8. primary air pollutant
- 9. are animals affected by air pollution?
- 10. _______ can improve air quality
Down
- 1. type of rain caused by air pollution
- 2. what does air pollution affect?
- 3. pollution can cause what disease
- 5. where is pollution?
- 7. air pollution can affect your _______ system