Which of the following excerpts from the Constitution describe federalism?

To keep other european powers from threatening its empire in america, spain sent soldiers, settlers, and?

Me! these questions are based on american people in the south essential questions: question 1: for what reasons will one group of people exploit another?focus questions: question 1: what influenced the development of the south more: geography, economy, or slavery?question 2: what were the economic, political and social arguments for and againsts slavery in the first half of the 19th century.

What would be considered a secondary source about the assasination of abraham lincoln