Answer:
Water
Explanation:
With no one managing the cities vast and complicated tap water and sewer networks there would be flooding
The chemicals had caused the eruption of smoke that filled the air. (Not sure if this is 100%)
You can use text evidence to back up what type of interpretation you have of a theme. Like the theme “Challenge’s can be overcome with hard work and patience” if your interpretation of the theme is that the theme Challenge’s can be overcome with hard work and patience means that when you have obstacles and challenges that you need to overcome. Having patience and being doing hard work can help you overcome your obstacles/challenges. Then you can give an example by using text evidence. There are plenty of other ways to use text evidence to support an interpretation of a theme as well.
In chapter 2 of the Lightening Thief, Percy sees 3 old ladies knitting a sock and one cuts a string looking in his direction which symbolizes Percy's lifeline is in danger. The ladies know he is a demigod in danger, and the mist keeps him from knowing this. The mist conceals magic. Later as the book goes on strange events lead to a realization that he is a demigod.