Which of the following is not one of the four main components of US federal government spending? Select the correct answer below:
healthcare
national defense
social security
education

Social security because health care and defense and education is very important to the federal government.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.