What was most novel about city life? how are cities different today?

A lot of Cities are more built up and cleaner
Becoming more richer
The population might of gone up in most cities
More people doing Teritiary jobs then Secondary and Primary

It can the reader to have a broader understanding of the point or main idea of a passage/essay. if you use words with similar meanings throughout a written work, it can show the reader that the words reflect the key idea of a passage. this can really you to understand what is going on, and reflect on some key ideas and phrases that were mentioned in said written work.i hope this !