Earth Day

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Across
  1. 1. Recycling something that results in a product of higher value than the original item
  2. 4. To keep safe or protect something
  3. 9. Something that comes from a living organism
  4. 13. Produced by the action of the sun’s light or heat
  5. 14. The natural home of an organism
  6. 15. System of garbage disposal in which the waste is buried
  7. 17. Something that can be replenished
  8. 18. Community or group of living organisms
  9. 19. Mixture of gases that surrounds the Earth
  10. 20. Study of organisms
Down
  1. 2. Mixture of organic residues
  2. 3. Everything that is around us
  3. 5. Being able to maintain or support a process continuously over time
  4. 6. Odorless, colorless gas found in Earth’s atmosphere
  5. 7. Trash or garbage lying scattered around
  6. 8. The action of making something unclean
  7. 10. Save or protect
  8. 11. No longer existing
  9. 12. Something that has been released (ex: gas, heat, sound)
  10. 16. Converting waste into reusable material