Vocab Crossword

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Across
  1. 3. sustainable
  2. 5. to protect
  3. 6. to reuse
  4. 8. to solve
  5. 9. to become extinct
  6. 10. to vote
  7. 11. to fly
  8. 12. to keep informed
  9. 13. to improve
Down
  1. 1. invention
  2. 2. to decrease
  3. 4. responsible
  4. 6. to replace
  5. 7. to breathe
  6. 10. to value