Blue Marble Crossword

Advanced Earth Day-themed Crossword Puzzle

1. Often used in place of glass, metal, and wood
1. The contamination of soil, air, or water by human activities
2. Found in all living organisms
3. An area built with glass or plastic walls and roof to absorb and retain heat from the sun
4. The invisible gas that surrounds the Earth
5. Area that offers necessary resources
6. The typical weather patterns of a region
7. In jeopardy of disappearing
8. A large area of land that is densely covered with trees
9. A gas which absorbs harmful UV radiation
10. A liquid that covers 70% of the Earth's surface
11. Decomposing organic material used to fertilize plants and improve soil structure
12. Reusing resources to conserve energy
13. Fith largest planet in the solar system
14. Made from living or once-living organisms
15. A tall perennial woody plant with a single main stem and many branches
16. A thin layer of air that surrounds a planet
17. The physical universe, including plants, animals, and landscapes
18. The loss of trees due to human activity
19. A natural movement of air in the atmosphere