Answer:
"is" should be are
Explanation:
"the trails" is plural so you have to use "are" rather than is.
What passages? I can't answer this for you because I can't read the passages.
In the mid-188’s Walt Whitman was considered a revolutionary because no one had ever written poetry like his before. His poetry was not only “free-verse” instead of a structured, rhymed writing style; it was also about the complexities of personal life, cultural life, and about things previously considered of intimate nature.
