Earth day crossword

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Across
  1. 1. When an animal or plant completely ides off
  2. 4. To use discarded objects to create objects of higher quality than the original
  3. 6. The ability to maintain a process over time
  4. 8. Where trash that is not recycled ends up
  5. 9. It is Something you can do with organic materials to dispose of and decompose them
  6. 10. It is the layers of air that surround Earth and protect it
  7. 11. A toxic gas that helps to protect the earth from ultraviolet rays
  8. 16. The surroundings or conditions that an organism lives in
  9. 18. To maintain something
  10. 19. Relating to the Sun
Down
  1. 1. A discharge of something, especially gas
  2. 2. To dispose of trash by just dropping it anywhere
  3. 3. Where an animal or plant lives
  4. 5. To hurt and environment by littering or disposing of chemicals
  5. 7. It is a biological community of interacting organisms
  6. 12. Derived from living matter
  7. 13. To protect or save something, especially to protect the environment from harm or destruction.
  8. 14. It is a branch of biology that focuses on organisms and their interactions with their surroundings
  9. 15. Cannot be depleted, Solar energy is this
  10. 17. To reuse something after it was used, or to turn it into something else useful