Cities

4. A way of turning food scraps and plant material into rich soil for gardening
5. Energy that comes from sources that won’t run out, like the sun, wind, or water
7. Something that is good for the environment and doesn’t cause harm to nature
9. Buses, trains, and other vehicles that carry people around the city and are available for everyone to use
10. Harmful materials in the air, water, or soil that can hurt the environment and people
11. A place where many people live, bigger than a town
12. A place where people live, smaller than a city

1. Someone who plans a city
2. A place where over 10 million people live
3. Using resources in a way that does not harm the environment and can be continued for a long time
6. Areas with grass, trees, and plants in a city, like parks and gardens
8. Someone who designs buildings