Across
- 2. The elected leader of a city government.
- 4. Dirty air, water, or land caused by human activity.
- 8. The system that provides clean water to houses and buildings.
- 10. Money citizens must pay to the government to support public services.
- 11. Shared vehicles used by many people to travel in a city.
- 12. The process of collecting and reusing materials like paper, plastic, or glass.
- 15. A liquid fuel used to make cars and motorcycles run.
- 16. Long paved surfaces where cars, buses, and other vehicles travel.
- 18. City vehicles that transport passengers using electrical power.
- 19. A system that allows people to connect to the online world.
Down
- 1. Dishonest behavior by people in power for personal benefit.
- 3. A very tall building with many floors in a city.
- 5. Flat devices that turn sunlight into electrical energy.
- 6. A situation where many vehicles are stuck and moving very slowly.
- 7. Machines that perform tasks automatically or with little human help.
- 8. A tall structure with large blades that uses wind to produce energy.
- 9. A monthly payment for the power used in a home or building.
- 13. A public service that removes trash from homes and streets.
- 14. Lamps placed along streets to help people see at night.
- 17. A network of underground pipes that carries waste water away from homes.