Across
- 6. Protection of natural resources
- 7. Cutting down of forests
- 11. Knowledge to protect environment
- 13. Indian city often affected by smog
- 14. Combination of smoke and fog
- 16. Energy from moving air
- 17. Total greenhouse gases produced by human activity
- 19. Process of reusing materials
- 20. Natural disaster caused by heavy rainfall and climate change
Down
- 1. Diseases caused by polluted air
- 2. Non‑biodegradable waste harming environment
- 3. Rise in Earth’s average temperature
- 4. Variety of life on Earth
- 5. Act of growing trees
- 8. Energy from the sun
- 9. Contamination of air, water, or soil
- 10. Energy source like solar or wind
- 12. What happens to glaciers due to heat
- 15. Strong rotating storm linked to warming seas
- 18. Layer protecting Earth from UV rays