Answer:
Scholars have suggested a number of potential reasons for the downfall of Maya civilization in the southern lowlands, including overpopulation, environmental degradation, warfare, shifting trade routes and extended drought. ... What is certain is that the Mayans didn't disappear in the aftermath of the collapse.
Explanation:
The answer is lines 2, 3, and 4.
The way that the personification in the line "Their hearts have not
grown old" in Stanza 4 affects the poem is that; C: It shows that the swans remain youthful year after year.
<h3>What is the personification?</h3>
Personification is defined as the act of giving human traits to nonliving things.
Now, this question is taken from the poem titled "The Wild Swans at Coole"
Now, in the poem, The Wild Swans at Coole, we see that Yeats utilizes the theme of the frailty of human life through his speaker. Then the speaker becomes keenly aware of his own ageing as he watches the same swans that he had watched every year.
Finally, we can conclude that the personification in the line "Their hearts have not grown old" in Stanza 4 of the poem will affect the poem in that It shows that the swans remain youthful year after year.
Read more about Personification at; brainly.com/question/1013597
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They want to barrow the cat
