In terms of structure, the poems are very different. The haiku is only three lines long and discusses a single moment in time; “Digging” is much longer, has many stanzas, and jumps between time periods. There are some ways in which the poems are similar, however. For example, the speakers of both poems discuss how their writing is related to and inspired by farming or gardening.
Answer:
The apartment shuddered under the onslaught of the howling wind.
The main purpose of subheadings are: They stand out because of their size and attract attention. The scanner will stop to read them and continue scanning until the next subhead which they'll then read. Scanning from subhead to subhead, they serve to guide the reader down the page.
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Hope it helps...</h2>