Explanation: personification is a figure of speech that consists in giving human characteristics to non human objects (or animals) in order to create an image. In the given excerpt we can see an example of personification because Calpurnia says that graves (non human objects) have the ability of yawning and yielding up their dead (which are human characteristics that graves can't really do).
<span>a word, letter, or number placed before another. (noun) or </span><span>add (something) at the beginning as a prefix or introduction.(verb)</span>
