Across
- 3. A frozen continent
- 6. Chemical basis of life on earth
- 11. The plant life
- 13. A greenhouse gas
- 19. Organic materials that decompose naturally
- 22. An airy blanket around the earth
- 23. A community of organisms and their surroundings
- 25. Making air dirty
- 26. Earth's tilt causes ______
- 27. Middle of the rainbow
- 32. A period of time when earth cools down
- 33. Rising of earth's temperature due to greenhouse gases
- 35. Pale Blue Dot
- 36. Synthetic compounds made of polymers
- 37. The top layer of the earth where plant life grows
Down
- 1. The animal life
- 2. A natural home of a plant or animal
- 4. Home of polar bears
- 5. Prevention of wasteful use of resources
- 7. Earth's UV shield
- 8. Earth's closest cosmic companion
- 9. Earth, the _____ _____ of solar system
- 10. Sites for the disposal of solid waste
- 12. Planet making clouds of gas and dust
- 14. Age of the earth is around 4.5 _____ years
- 15. Original oxygen producers, blue-green algae
- 16. Destruction of life forms forever
- 17. Naturally replenished resources like sun and wind
- 18. Water reserves of the planet earth
- 19. Variety of life on earth
- 20. A period of time when earth warms up and glaciers melt
- 21. The natural surroundings of a plant or animal
- 24. Wireless battery for earth
- 28. Life forms at the risk of extinction
- 29. Oxygen producers
- 30. Process of life's origin on earth
- 31. "Say no, do refuse; Plastic of ______ ___"
- 34. Largest part of earth's atmosphere