Planet Earth Crossword

Advanced Earth Day-themed Crossword Puzzle

1. A natural movement of air in the atmosphere
2. A structure that traps heat from the sun to create a warm environment to grow plants
3. Reusing resources to conserve energy
4. Produced by a living organism
5. A large area of land that is densely covered with trees
6. The basis of all organic molecules
7. Adverse alteration of the physical, chemical, or biological properties of air, water, or soil
8. The typical weather patterns of a region
9. A layer in the atmosphere which shields us from ultraviolet radiation
10. Area that offers necessary resources
11. A liquid that covers 70% of the Earth's surface
12. The totality of the physical world, including plants and animals
13. A mixture of gases that forms the Earth's atmosphere and is necessary for the respiration of living organisms
14. The loss of trees due to human activity
15. A tall plant with a trunk and many branches, typically growing to a considerable height
16. The gaseous layer that surrounds a planet
17. Fith largest planet in the solar system
18. Often used in place of glass, metal, and wood
19. Decomposing organic material used to fertilize plants and improve soil structure
20. In peril of being lost forever