Advanced Earth Day-themed Crossword Puzzle
Listed Items
- 1. To use something again after it has been used up
- 2. The area or environment in which an organism or ecological community normally lives
- 3. A gas that absorbs ultraviolet radiation
- 3. Derived from living sources
- 4. A hue that can be seen in many plants
- 5. The physical and biological factors that affect the life of an organism
- 6. Air in motion
- 7. Long-term weather patterns in a certain area
- 8. Earth's main source of energy
- 9. A mix of decaying organic material used to fertilize soil
- 10. The spread of hazardous materials
- 11. A layer of air that surrounds a planet
- 12. Third planet from the sun
- 13. A large area of land covered with trees and other plants
- 14. A resource that can be used over and over
- 15. The physical world and all living things
- 16. In danger of becoming extinct
- 17. A tall, woody plant with a trunk, branches and leaves