Advanced Earth Day-themed Crossword Puzzle
Listed Items
- 1. A gas that absorbs ultraviolet radiation
- 2. A hue that can be seen in many plants
- 3. Reducing waste and pollution
- 4. A resource that can be reused
- 5. To use something again after it has been used up
- 6. The place where a living organism dwells
- 7. A large area of land covered with trees and other plants
- 8. Air in motion
- 9. The physical world and all living things
- 10. The natural world and its surroundings
- 11. The air around the Earth which contains oxygen and other gases
- 12. At risk of extinction
- 13. A synthetic material made from a wide range of organic polymers
- 14. Organic matter that has been broken down into a soil-like substance
- 15. The spread of hazardous materials
- 16. A component of coal
- 17. A plant with a trunk and branches that grows from a seed
- 18. Derived from living sources
- 19. Earth's main source of energy
- 20. A structure that provides warm temperatures and humidity for plants to grow
- 21. The average weather of a region over a period of time
- 22. A sphere made of land and water
- 23. A gas mixture composed of nitrogen, oxygen, and other gases