A unitary system of government, or unitary state, is a state governed by a single entity. A confederate government system is a relationship (sometimes loose) between a smaller number of political units. More of an agreement than anything. Finally a federal government is a system that divides power between a strong national government and smaller local government.
All three of these are completely different things.
The United States annexed the independent state of Hawaii during the conflict.
The philosophies of individualism and secularism were similar during the European Renaissance because d) each philosophy deemphasized the importance of religion. This was because individualism emphasized that the individual could make their own choices (without influence from the government or the church) and secularism emphasized living a life without the church (or the influence of the church).
Shows a relationship that does not always indicate cause and effect ,