What is the extract trying to achieve? in The Explorer’s Daughter

What is most likely the speaker's intent in this excerpt from the speech "solitude of self" by elizabeth cady stanton?

What predictions can be made about the future availability of freshwater within the southeast united stares ?

Which line is an example of iambic pentameter? a) but how of cawdor? the thane of cawdor lives b) and i do love thee: therefore, go with me c) fear no more the heat o' the sun d) to be, or not to be, that is the question me, i'd appreciate it