Advanced Earth Day-themed Crossword Puzzle
Listed Items
- 1.  A thick grouping of trees, shrubs, and other plants
 
- 2.  The contamination of soil, air, or water by human activities
 
- 3.  A transparent or translucent structure to warm the air and protect plants from cold weather
 
- 4.  A layer in the atmosphere which shields us from ultraviolet radiation
 
- 5.  The elimination of forests or woodlands
 
- 6.  The physical world and all its phenomena, including plants and animals
 
- 7.  A tall plant with a single stem and many branches
 
- 8.  Often used in place of glass, metal, and wood
 
- 9.  The fluid medium of the Earth's atmosphere
 
- 10. A component of carbon dioxide
 
- 11. A thin layer of air that surrounds a planet
 
- 12. Made from living or once-living organisms
 
- 13. In peril of being lost forever
 
- 14. A liquid that covers 70% of the Earth's surface
 
- 15. Transforming waste into new items
 
- 16. Organic matter that is broken down and used as a soil amendment
 
- 17. Natural home of an animal or plant
 
- 18. The atmospheric conditions of a region over a long period of time
 
- 19. A natural movement of air in the atmosphere
 
- 20. Fith largest planet in the solar system