Human resource is an important resource. It is the ultimate resource for any country as it is important for the development of economy and society.
Population is defined as the total number of people occupying a particular space at a particular time. Population distribution is the arrangement or spread of people living in a given area. Some areas are densely populated while others are sparsely populated.
Density of Population is defined as the number of people living per square unit of land area. The average density of population in the whole world is 51 persons per sq km. The average density of population in India according to the Census of 2011 is 382 persons per sq km.
Land area in the northern hemisphere is more than that of the southern hemisphere and so is the population. Asia and Africa accommodate about three-fourth of the population of the world.
Population is higher in the plains than in the plateaus and mountains. Plains of the Ganga are the most densely populated region in the world. Mountainous regions around the world like the Himalayas, the Andes, etc., are sparsely populated.
Population is directly related to resources, so an increase in population leads to scarcity of resources. Development of resources is not taking place at the same rate at which the population is increasing.
Migration can be defined as the physical movement of human beings; i.e., coming in and going out of a particular region. It is of two types:
Immigration is the arrival of new individuals into a new country, whereas emigration is the act of leaving one’s country to settle in a new one.