¡Todos para uno y uno para todos!

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Across
  1. 4. poverty
  2. 6. visit the sick
  3. 7. publicity
  4. 9. beforehand
  5. 13. delegate
  6. 14. to cooperate
  7. 15. hunger
  8. 17. to help
  9. 18. nursing home
  10. 19. recycle
  11. 20. trash
  12. 21. signs
Down
  1. 1. the environment
  2. 2. collect
  3. 3. priority
  4. 5. fundraiser
  5. 7. park
  6. 8. homeless
  7. 10. organize
  8. 11. to take care
  9. 12. volunteer
  10. 16. spend