Across
- 3. clue for ewaste
- 7. gas that is more harmful than CO2
- 9. clue for wildfire
- 11. clue for ecosystem
- 13. the major source of ocean pollution
- 14. clue for turtle
- 16. clue for pollution
- 17. the cleanest source of water
- 18. method of growing urban forest by planting trees very close to each other
- 20. clue for landfill
Down
- 1. reason for global warming
- 2. clue for carpool
- 4. 75% of the earth surface is made up this
- 5. converting used goods to raw materials for reuse
- 6. clue for climate
- 8. process of converting vegetable waste into manure for plants
- 10. clean mode of transport for short distance
- 12. gas responsible for greenhouse
- 15. clue for rhino
- 19. renewable energy harvested from the sun