Can someone write down three facts that you believe to be undeniable truths? can these truths ever change? can your perceptions of them change?

How does the narrator’s knowledge of his postapocalyptic world in "by the waters of babylon” affect his reactions to the different settings? it motivates him to make up stories about the world and the places he explores. it has caused him to fear the settings outside the hill country, so he tries to avoid them. it forces him to reject what he sees and experiences himself at various locations in the story. it makes him cautious about new settings yet open-minded and critical of what he experiences.

Does anyone know the answer to the question?

Identity the three types of language