What are the collective nouns ? . thank you so much everyone

Which theme is best supported by the descriptive detail in this passage from my antonia

Writers try to let us know what is central to their writing. when we notice words such as "meanwhile," "afterward," "before," or "previously," an author is letting us know the order in which events happen. a paragraph that mostly uses these key words is arranged in what structural form?

What are two themes in ted chiang’s “exhalation”?