Earth Day Crossword

Advanced Earth Day-themed Crossword Puzzle

1. A nutrient-rich mixture of decaying organic matter
2. Reusing resources to conserve energy
3. The presence of harmful chemicals in the air, water, or land
4. A natural movement of air in the atmosphere
5. A structure with transparent walls and roof that is used to grow plants
6. A natural resource used for drinking, irrigation, and recreation
7. Area that offers necessary resources
8. A large area of land with many trees and other plants
9. In danger of vanishing
10. A layer in the atmosphere which shields us from ultraviolet radiation
11. Fith largest planet in the solar system
12. The physical universe, including plants, animals, and landscapes
13. Found in all living organisms
14. A tall plant with a single stem and many branches, typically growing to a considerable height
15. The average weather of a region over a long period of time
16. The air surrounding the Earth
17. Refers to molecules that contain carbon
18. Often used in place of glass, metal, and wood
19. The process of clearing trees from an area of land
20. The fluid medium of the Earth's atmosphere