Population Dynamics

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Population means the total number of people living in a specific area at a particular time. It is not fixed; it changes over time because of births, deaths, and migration.

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Population dynamics is the study of how and why population changes in size and structure over time. It looks at growth, decline, age pattern, sex pattern, and movement of people.

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Population density is the number of people living in a given area. It is measured as the total population of a country divided by the total land area of the country, usually in people per square kilom…

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Population density = Total population of a country / Total land area of the country. It is usually measured as number of people per square kilometre.

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Population density depends on physical and human factors. Relief, resources, and climate are physical factors. Political, social, and economic factors are human factors. Flat land, good water supply, …

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Densely populated regions include Central and South-East Asia, Western and Central Europe, and North-Eastern USA. These areas have good climate, resources, and economic opportunities.

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Hot deserts, cold polar regions, and equatorial rainforests are sparsely populated. Harsh climate, difficult relief, and limited living conditions make large settlements difficult.

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A choropleth map is a shading map used to show population density. Darker colour means greater density, while lighter colour means lower density.