The word that best describes the tone in this stanza is: happy.
This stanza was taken from the poem I Hear America Singing, by Walt Whitman. It's a poem of patriotism, of pride of each and every person who helps build America and make it what it is. Everyone is important: the carpenters, the mechanics, the masons, the mothers, the wives. All of them sing their melodious songs of freedom and opportunity.
Formal.
As far as I know, there is no such thing as either standard or practiced diction. Informal is the way you communicate with your friends, for instance, which is not how you would write a thesis paper, legal document, etc.
if your asking us to write an essay for you then that's just sad
Answer:
the variety of ideas presented in the book
Explanation:
The most important factor that Arjun needs to consider when writing a report about the different types of energy and selecting a nonfiction text for his report is the variety of ideas presented in the book.
This choice is the most important factor he needs to consider because he wants to include solar, electrical, and wind energy in his report so he would need a nonfiction text that would give him different ideas.
So I think is being is the answer