Come in March is the prepositional phrase
it is also adjective phrase
It means death. thats the awnser
Ethos appeal means that it is appealing to the credibility of the speaker. Anytime that Henry mentions why he is competent enough to speak about what he's speaking about, that's an appeal to ethos. It would be like a doctor mentioning what schools he went to and what degrees he has, before he delivers a speech about some illness or anything similar. You trust him because of his credibility.
