Across
- 2. a dangerous place in the city
- 4. cars, factories or buses' emissions
- 6. when a city is overcrowded
- 9. trash
- 10. when there is not enough water
- 11. sound made by train,airplanes and constructions
Down
- 1. the action of building something, typically a large structure
- 3. people don't have a place to live
- 5. process in wish a poor area people can rebuilt homes and businesses
- 7. a lot of cars stuck in the same place
- 8. place where your can put your car