What is the composition of the population?

The constituent elements of population refer to various factors that affect the population quantity and structure. The composition of the population is as follows:

Birth rate: the birth rate refers to the proportion of the number of people born each year to the total population. A high birth rate will lead to an increase in population, while a low birth rate will lead to a decrease in population.

Mortality: Mortality refers to the proportion of people who die each year to the total population. High mortality will lead to population decline, while low mortality will lead to population increase.

Mobility: Mobility refers to the proportion of people who move into or out of a certain area to the total population. High immigration rate will lead to an increase in population, while high immigration rate will lead to a decrease in population.

Age structure: Age structure refers to the proportion of different age groups in the total population. The change of age structure will affect the change of population size and population structure.

Sex ratio: Sex ratio refers to the number ratio of men and women. There are differences in gender ratio in different countries and regions, which will also affect the changes in population size and structure.

Marital status: Marital status refers to the proportion of married and unmarried people. Different marital status will affect the fertility rate and migration rate.

Education level: Education level refers to the education level of the population, including illiteracy rate and the proportion of the population receiving higher education. The improvement of education level has an important impact on population structure and economic development.

The composition of population is a complex and multifaceted problem, and there are complex relationships among different factors. Understanding and studying population composition is of great significance for formulating population policy and socio-economic development.