Advanced Earth Day-themed Crossword Puzzle
Listed Items
- 1. A sphere made of land and water
- 2. Able to be used again and again
- 3. The invisible substance that fills the atmosphere
- 4. The introduction of contaminants into the air, water, or soil
- 5. Air in motion
- 6. The natural world and its surroundings
- 7. At risk of extinction
- 8. The state of the atmosphere in a given region
- 9. Derived from living sources
- 10. A molecule that is toxic to many organisms
- 11. The geographical area where a particular species is located
- 12. A layer of air that surrounds a planet
- 13. A building with walls and a roof made of transparent material, used to grow plants year round
- 14. A material that is used to make toys and containers
- 15. A large area of land with many trees and plants
- 16. Earth's main source of energy
- 17. A hue that can be seen in many plants
- 18. Reducing waste and pollution