Planet Earth Crossword Puzzle

Advanced Earth Day-themed Crossword Puzzle

1. A blend of decaying organic matter such as leaves, grass clippings, and food scraps
2. A thick grouping of trees, shrubs, and other plants
3. A woody perennial plant, typically having a single stem or trunk growing to a considerable height and bearing lateral branches
4. An enclosed space with a transparent roof and walls to allow sunlight to enter and create a warm atmosphere
5. A layer in the atmosphere which shields us from ultraviolet radiation
6. The elimination of forests or woodlands
7. On the brink of extinction
8. A mixture of gases that forms the Earth's atmosphere
9. Made from living or once-living organisms
10. The totality of the physical world, including plants and animals
11. The basis of all organic molecules
12. Reduce, reuse, and repurpose
13. A light, gentle flow of air
14. Often used in place of glass, metal, and wood
15. The average weather of a region over a long period of time
16. The air surrounding the Earth
17. Natural home of an animal or plant
18. The presence of harmful chemicals in the air, water, or land
19. A colorless, tasteless, odorless liquid
20. Fith largest planet in the solar system