What does the sign of prosperity you see alice an adolescent.?

I'm not exactly sure what you mean by "prosperity" but Alice does change both physically and emotionally through the book. In the beginning, she can barely maintain enough composure to keep herself from crying. By the end of the novel, she is self-possessed and able to hold her own against the most baffling Wonderland logic. Check this out at the link below,

http://www.gradesaver.com/alice-in-wonderland/study-guide/major-themes/