Andrea is reading a general, comprehensive account of human aggression in the introduction to a research report in psychology. Andrea is reading a(n):

She is reading a Theory

Explanation:

A theory is defined as the set of principles and knowledge that govern a science, doctrine, or activity. In Andrea's case, she is reading an introductory topic on human aggression. Issues like these are supported by a series of theories that try to explain their cause.

i would think yes.

explanation:

because we have every natianlity in our country which makes us so diverse and unique. that's why in a lot of cities there are places like little italy, koreatown, chinatown.