U3 L1

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Across
  1. 3. ground, soil
  2. 5. to value
  3. 7. Garbage Container
  4. 8. to fly
  5. 10. Clean Air
  6. 12. to destroy
Down
  1. 1. Smog
  2. 2. to support
  3. 4. Biodiversity
  4. 6. the invention
  5. 9. to improve
  6. 11. to protect
  7. 12. to diminish