Millions of people live in cities around the world, but have you ever wondered how cities work? All those people need clean water to drink, a safe place to live, and a way to get all around the city! How do you take care of all those people’s needs? Your city has a plan for that. Read and find out all about the systems a city has to help keep everyone safe, healthy and happy.
by D. J. Ward, Violet Lemay