Ch 9

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Across
  1. 2. economical
  2. 4. battery
  3. 5. aerosol
  4. 8. to grow
  5. 9. to trap
  6. 11. polluted
  7. 12. chemistry
  8. 13. factory
  9. 14. enough
Down
  1. 1. oil spill
  2. 3. to punish
  3. 6. poison
  4. 7. protection
  5. 10. to melt