File 2

 Ans 2= social structure, in sociology, the distinctive, stable arrangement of institutions whereby human beings in a society interact and live together. Social structure is often treated together with the concept of social change, which deals with the forces that change the social structure and the organization of societPerceptual realism is the common sense view that tables, chairs and cups of coffee exist independently of perceivers. Direct realists also claim that it is with such objects that we directly engage. The objects of perception include such familiar items as paper clips, suns and olive oil tins.Realists believe that there are no universal principles with which all states may guide their actions. Instead, a state must always be aware of the actions of the states around it and must use a pragmatic approach to resolve problems as they arise.