Answer:
He uses the sword fight to depict conflict.
Explanation: If you are referring to the sword fight that they had, they used the stage direction to show that Mercutio was disgusted of tybalt, and was mad, and stabbed him through Romeo's arm. So a flat out answer, Shakespear uses the stage directions of Mercutios emotions and movements to show conflict between mercutio and tybalt, leading to tybalt stabbing mercutio.
Im pretty sure that it is 8 lines.
I would say this group of lines illustrates the music of autumn, because the word choir is mentioned:
<span>"Then in a wailful choir the small gnats mourn
Among the river sallows, borne aloft
Or sinking as the light wind lives or dies".</span>
