What is the main idea of chapter 9

Question: What is the main idea of Chapter 9?

Hey!

If you have a question, just let me know and I would be glad to try to help!

For this question, it doesn't seem like you have any additional information, or even a picture.

If you would be able to provide a picture or even just additional information, that would be a great help!

Hope this helps, have a good day. c;