Thoreau mostly uses imagery to illustrate time in the excerpt. The second sentence is saying that he is in the midst of time/living, and he can "detect how shallow it is," meaning that he is aware that life is short and that the end is inevitable. Thoreau also describes time as being fleeting, but ever-present.
I hope this helps!
<span>#2 is correct of Daly's "Sixteen". Young love and disappointment are both concurrently running themes throughout the story, as it focuses around a teenage girl experiencing relationships and breaking up with boys for the first time in her life. It delves into the conflict between the young protagonist's heart and mind as she grows up and develops feelings for boys around her.</span>
A book about the
Challenger explosion
written in 2008, updates
with recent findings
I would need to see the given choice answers in order to tell you the correct one