Population Density: Population density measures the average number of individuals per unit area (usually square kilometers or square miles) within a specific region.
Urbanization: Urbanization is the process by which an increasing proportion of people live in urban areas (cities), leading to higher concentrations of populations there compared to rural areas.
Migration: Migration refers to the movement of people from one place to another, either within a country or between countries. It can influence the concentration of population by increasing or decreasing numbers in specific regions.