Sociology is the scientific study of the society. It is a stream of  social science which uses various methods of empirical and critical analysis to develop a body of knowledge about human social activities. Sociology primarily concerns itself with social relationships. A network of social relationships is called the society. The society is the sole concern of sociology. Sociology is therefore a scientific study of human behaviour in groups, having for its aim the discovery of regularities and order in such behaviour and expressing these discoveries as theoretical propositions or generalizations that describe a wide variety of patterns of behaviour. Members of a group interact with one another at the individual level.