The custom of a certain area, i.e. a local custom, is called localism.
Answer:
It connects the main idea to the sentence.
. The term “extended metaphor” refers to a comparison between two unlike things that continues throughout a series of sentences in a paragraph, or lines in a poem. It is often comprised of more than one sentence, and sometimes consists of a full paragraph. Hope this helps sry I don't know that much
Well, you don't exactly comment per se. You click "answer" or go to someone else's answer and click reply (not sure the exact labelling but it's something along those lines).
Edit: It says "add your comment to this answer here", not "reply."