Closest meaning to singular ?

Is harry truman considered a hero or a tyrant for dropping the atomic bombs on hiroshima and nagasaki? (need a paragraph)

Which of the following scenarios best shows the relationship between personal and civic responsibility? tara stays home on friday night to babysit her sister instead of going to a movie with her friends. theo asks neighbors to sign a petition asking the city council to lower the speed limit in their neighborhood to make it safer for children. natalie watches a presidential debate with her parents in order to complete a homework assignment for school. nick’s scout troop adopts a section of highway in their community to keep free from litter.

What happened in the tinker v des monies? and why is it important what happened in the hazlewood v. kuhlmeier? why is it important?