A sonnet structure is used because sonnets were used at that time to proclaim love and were often written to loved people. By using sonnet form instead of Shakespeare's regular blankverse he shows that there is love between them.
[ (a.) What in me is dark
Illumine, what is low raise and support; ]
That to the highth of this great Argument
[ (b.) I may assert th' Eternal Providence, ]
Answer:
"Without innovations in food production, the factories could not have grown so quickly. The trend quickened after 1860 and continued throughout the 21st century as well."
Explanation:
Because in the previous sentence it already stated the same thing. (PS I probably got this wrong)
I'm Not Sure, But I Think That It Is B. I'd Wait For Other People To Answer.
Prepositions ususally stand before nouns, in this case "on" is the preposition.