Visualizing a sequence of events can give the reader a sense of coherence and harmony in the story that he/she is reading. When events are sequentially arranged, the reader has a clearer picture on what is about to happen in the story that he/she is reading. Aside from this, comprehension will be at par because the events have already been mapped or laid out in the mind.
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The biography uses a chronological structure; "Marian Anderson Sings" uses flashbacks to narrate the events.
A functional text is a text to fulfill a certain function, such as instruction manual or description of getting somewhere. A dialogue would be too confusing and redundant for this purpose; the best functional text would simply describe the information it needs to provide in a clear manner.
These two characters are not similar whatsoever. Eurymachus is a deceitful person, always scheming, thinking of plans how to enjoy himself and doesn't care about others. He even wanted to kill Odysseus' son Telemachus. He treats everyone with disrespect and is extremely arrogant. These are not adjectives that describe Odysseus, even though he did show arrogance when defeating the Cyclops.