This is a physical description as it <em>fully depicts the place</em> that the character is passing by. For instance, he/she identifies meters ("about a hundred yards") and miles ("that was five miles wide".) He/she also describes the place: "a shallow lake," "full of rushes," "and ducks (...) in the season," "There was a slough or a creek leading out of it." This is a <em>setting</em> full <em>of physical details</em>.
mark this as brianlists okay
Background information in the exposition is the answer
Answer:
Thoreau's general opinion of government relate to his imprisonment, as described in "civil disobedience" as He believed that government was corrupt and that he was justified in not paying his taxes despite being put in prison.