Is the noun understanding a concrete or abstract

Which best explains how the viewpoint in the greenberg interview differed from that in the informational text on thurgood marshall. a. the informational article provides an insider's view of the brown vs board of education case; the perspective of the greenberg interview is more distant.

I'm scared to talk to people what can i do to with this?

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