The subordinate clause here is A, "as the layers of ash slowly compressed". Subordinate means that it cannot exist on its own, it has to be a part of the main, independent clause.
I would say try to learn it every time also always test yourself, for a student and a adult teaching try to get the student happy because it the student is upset they won't get anywere. Hopefully that helps you ❤
Answer:The figurative language makes it much easier to focus on what is about to happen and the author doesn't use any connotations.The figurative language in this passage creates a scene where if you focus and read the passage very carefully and slow then you actually start to experience the feeling of it all coming to life.