Answer:
Universal: Coming of age in "To Kill a Mockingbird", Love and attraction in "Romeo and Ju liet".
Specific culture: The American Civil War in "The Killer Angels", Racism against African Americans in "To Kill a Mockingbird".
Step-by-step explanation:
Universal themes refer to those themes that relate to anyone regardless of the culture or geographic location. It mainly deals with the common theme of humanity, basic human concerns, and a generalization about humans and their lives. Therefore, the coming of age theme in Harper Lee's "To Kill A Mockingbird" and the love and attraction theme in William Shakespeare's "Romeo and Ju liet" are universal themes as they deal with the theme that everyone can relate to.
On the other hand, a specific cultural theme deals with themes relating to a certain group of people/races. The themes are relatable or resonated with a certain group and do not necessarily concern the whole human race/ community. And accordingly, the American Civil War theme in Michael Shaara's "The Killer Angels" and racism against the African-Americans in Lee's "To Kill A Mockingbird" are examples of such cultural specific themes.