national unity is a process of being united forgetting their past mistakes and misuderstaing . Ithelps tobring the people of different casts cultured religion in one place. It helps to consolidate patriotism national unity is one of the major factor to build country prosperous. The felling of national unity always inspres us to respect the felling of other people and build up trust.If the people are unity nothing is impossible.National unity helps to bring peace in country.The priblems of the nation can be solved in mutual understanding .
If their is lack of national unity among people they are divided. They dont listen to each.We have seen many nations who have become powerful and prosperous by the virue of national unity. It helps to eradicate injustice,discrimination inequality and social eveils. It is very important to know by every one. At any cost,national unity should be maitatied in a country for peace, prosperity and development

Society or human society is the manner or condition in which the members of a community live together for their mutual benefit. By extension, society denotes the people of a region or country, sometimes even the world, taken as a whole.Used in the sense of an association, a society is a body of individuals outlined by the bounds of functional interdependence, possibly comprising characteristics such as national or cultural identity, social solidarity, language or hierarchical organization. Human societies are characterized by patterns of relationships between individuals sharing a distinctive culture and institutions. Like other communities or groups, a society allows its members to achieve needs or wishes they could not fulfill alone.
Population is the number or people living in a place or a country. Population is incressing rapidly which has threatened the whole world. Population growh is the problem of whole world. eEnough in skilful population is the wealth of country but unsklled and inactive population is the burned for the country. Overpopulation brings alot of problem in a country. It creates the problem of unemployment.When the people are jobless, they create a lot of social disorder in our sociaty. They are ready to do anything wrong for their survival. Many kind of diseases are appearing. There is high density of population in cities. We can see the heaps of garbage in every corner of the city. There is air pollution, sound polluption etc. people dont get clean drinking water. They have the problem of hand to mouth. Many people die of hunger. Nnless the population growth is controlled, acountry cannot progress.