What is one main characteristic of secondary sources intended for academics and students?

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points. a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

What militaristic words does henry use when making his argument? how do they impact the effectiveness of his speech?

What was the compromise that allowed california to be admitted to the union l-ala on?