Which verb or verb phrase signals and inappropriate shift mood?

According to stephen hawking in the "origin of the universe" lecture, "why are we here" and "where did we come from" are questions that

In the space below, enter the three discussion question stems you selected, and the answers you wrote as you reread the speech. even though this was a note-taking exercise, the answers should still be complete sentences, with correct spelling and punctuation.

Which characteristic of james baldwin’s “notes of a native son” qualify as a work of literary nonfiction