He described Americans from various social classes and professions in order to develop his ideas of democracy and equality.
His poem, Song of Myself, celebrates his own being, as well as other people's. He wanted to include as many social classes as possible so as to show how people are equal no matter which social class they belong to, or job they have - they are all people, and by extension, equal.
The phrase in the capital words is A. an adjective phrase.
What kind of city? The city of Arizona.
Adjectives are used to describe the nouns.
An idea intended to make the reader take notice and want to read on is called a hook
Dxddy_Amiii ~
for your question on that other question