City problems

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Across
  1. 3. - Parks and gardens in a city.
  2. 5. - When electricity stops working.
  3. 8. - Time of day with the heaviest traffic.
  4. 9. - Drawings or writing on walls.
Down
  1. 1. - Buses and trains for everyone.
  2. 2. - Trash you throw away.
  3. 4. - Dirty air and water.
  4. 6. - Many cars stopped on the road.
  5. 7. - Many people together in one place.