Identify five abstractions in your school environment. Indicate which details are hidden by the abstraction and how the abstraction helps manage complexity.

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?

Me fast do you think the outcome of this case would have been the same if president nixon hadclaimed national security needs rather than executive privilege? why or why not?

In which country is a system of unlimited government practiced? a) sweden b) north korea c) united states d) united kingdom