How is aza's anxiety shown throughout chapter one? ( turtles all the way down)

Her anxiety is shown because thoughts are swirling about her brain and flustered-like manner and she was pressing on the pad of her finger (which, according to her, is a nervous habit).

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

marriage difficulties adversely affect parent-child communication