(i). What do you understand by the concepts history, civivs, geography, economic and literature History according to Elton, defined "as a story of human existence and activity" this means that history involves the endless study of past events that occurred during the struggle of man and different activity that man did in order to survive and sustain their life including hunting, gathering, farming and fishing. Also according to H .E .Carris defined history "as a continual dialogue between the past and and the present" that implies the endless process of interaction between the historian in the present and the facts of the past and the relative weight of individual and social element on both sides of the question. Civics according to Merriam Webster defined " as the social science dealing with the rights and duties of citizen" this means that it deals with the study of human rights such as right to vote, right to marry or to get married, right to move, right to speak, right to own business those right fall in three categories either political, social or economic and rensiponsibilities of good citizens such as to pay tax, to respect law and to protect environment. The word Geography has been delivered from the Greek words "Geo" means "Earth" and "graphene"means "describe"or "write" hence it is considered to be descriptive study on the earth. Geography according to Yi-Fu Tuan, 1991 defined geography "as the study of earth as the home of people" this implies about how people think and feel about space and place in a personal sense, from their home and neighborhood to their nation and how that affected by time.Also Geography according to Balasubramanian defined "as the study of locational and spatial variation in both physical and human phenomena on the aerth. This implies that geography it describes the critical relation between natural feature and human feature that exists on the aerth. The word "Economic" comes from the ancient Greek word "Oikonomikos" that means the task of managing a household". Economic according Samuelson defined " as the study of how people and society choose, with or without the use of money, to employ scare productive resources which could have alternative uses, to produce various commodities overtime and distribute them for consumption now and in the future among various person and group of society" this means that economic as social science concerned with the production, distribution and consumption of good and service that direct how an individual, businesses, government and nation how to allocate resources. Also according to Marshall defined "as the study of man in the ordinary business life that implies the Study of wealth and human kind. common in these concepts. (ii). What is The common in the concept above is that all subjects deals with human behavior in its social and cultural aspects normally they are included within the social science that provide wide understanding of the natural world through several different feature which are systematic empiricism, emprical question and public knowledge.where enable a human being to interact with other people in a particular society positively by understanding their own problem and how to overcome them in order to sustain their life easy hence social science thus it includes civics, geography, economic and others subject that they relate and depend each other. (iii) How do they relate to one another. All subjects deals with nature and life situation of human being, all subjects that fall under social science they relate each other since tend to describe nature for example geography and economic explore be nature of the aerth and modification of different feato that have occurred under different force for example mountains, ocean and lakes while civics tend to explore life situation of human being simply because deals with political issues hence this subjects they relate and depend each other.