What impact does the heavy use of question marks have on the tone and message of the poem?

Which sentence you is an example of chronological structure in “the city without us”?

Precarious subsistence voracious abysmal wood is to fire as food is to arrowright grinning is to cheerful as teetering is to arrowright conniving is to scheming as terrible is to arrowright mournful is to sad as gluttonous is to arrowright

What evidence from the text supports the conclusion that gilgamesh demonstrates courage and takes risks?