Across
- 2. Energy from sun
- 4. flying mammal
- 5. A mixture of fog and smoke
- 6. Air pollutant from AC
- 7. Most abundant gas in environment
- 9. major source of oxygen in ocean
Down
- 1. Nondegradable waste
- 3. king of jungle
- 5. Nearest Star
- 8. Primary Source of Oxygen