Answer:
Contrast Structure using conjunction "although"
The conjunction "although" in this sentence is used to describe contrasting ideas present in two clauses.
Explanation:
"Although" is normally used as subordinating conjunctions i.e. to connect subordinate clause to the main clause. The sentence describes two contrasting or different ideas. From the idea, that thunderstorms are more common than hurricanes and tornadoes, one expects they would be less dangerous. But in contrast it is not the case (according to the author) - they are equally dangerous. Hence "although" is used to connect two contrasting ideas of two clauses.
The action of the speaker that can be considered ironic is that actually the speaker takes initiative of establishing the wall up to himself but then he questions it and has some doubts about that. There is another irony, I would say, the main one, you may find it useful : the wall which was meant to separate neighbours brings them together every year in order to repair it. Is it really the borderline?Hope that helps.
It’s a triangle in an ocean that many boats and people have gone missing and no one have found them
Answer:
The answer would be D) (-1, 5)