Earth Day Crossword Puzzle

Advanced Earth Day-themed Crossword Puzzle

1. A material that is resistant to water and chemicals
2. Earth's main source of energy
3. A sphere made of land and water
4. A current of air blowing from a particular direction
5. A building made of glass or plastic to keep plants warm and sheltered from the elements
6. A mixture of gases that surrounds the Earth
7. A molecule that is toxic to many organisms
8. Derived from living sources
9. A resource that can be replaced
10. To use something again after it has been used up
11. Harmful substances released into the air, water, or soil
12. A hue found in nature that is often associated with life, growth, and renewal
13. The average weather of a region over a period of time
14. A component of coal
15. Reducing waste and pollution
16. In danger of becoming extinct
17. A large perennial plant with a trunk and branches
18. The air around the Earth which contains oxygen and other gases
19. Found in oceans, rivers, and lakes
20. A mixture of decaying organic material used to improve soil quality
21. The environment or area in which an organism lives
22. The physical world and all living things
23. The physical and biological factors that affect the life of an organism
24. A wooded area, usually with a lot of trees and plants