Population density is described as the average number of people per square kilometer in a given area.
Population density is a measure of how many people are living in a specific area of land. It is calculated by dividing the total population of an area by the size of the land area in square kilometers. For example, if a city has a population of 1 million people and covers an area of 100 square kilometers, then its population density would be 10,000 people per square kilometer.
Population density can vary widely between different regions, countries, and even within a single city. Higher population density can put pressure on resources, infrastructure, and the environment, while lower population density can result in isolation and limited access to services.
Therefore, the average number of people per square kilometer is a good measure of population density, as it provides a standardized way of comparing different areas and understanding the impact of population on the environment and society.