Following are the four characters that are employed in the human population census:
- Sex-ratio: Sex ratio refers to the ratio of males and females in a population.
- Age group: A population is divided into three ecological age groups: pre-reproductive, reproductive, and post-reproductive.
- Occupation: Details about employment status and types of jobs.
- Natality and mortality: Natality refers to the total number of births occurring in a population over a specific period.
Mortality is the count of deaths within a population during a particular timeframe.
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