Notes On Population Composition - CBSE Class 9 Geography
Age composition indicates the number of people that belong to different age groups.

The population of a nation is generally grouped into three broad categories:
  • Children
  • Working age adults
  • Aged

Dependency ratio is the ratio of the dependent population to the working-age population of the country. The percentage of children and the aged affect the dependency ratio.

Sex ratio is the ratio of males to females in a population. It is calculated as the number of females per 1000 males of the population. The sex ratio in India has always remained unfavourable to females.

Summary

Age composition indicates the number of people that belong to different age groups.

The population of a nation is generally grouped into three broad categories:
  • Children
  • Working age adults
  • Aged

Dependency ratio is the ratio of the dependent population to the working-age population of the country. The percentage of children and the aged affect the dependency ratio.

Sex ratio is the ratio of males to females in a population. It is calculated as the number of females per 1000 males of the population. The sex ratio in India has always remained unfavourable to females.

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