Question

If the number of individuals in reproductive age is more than pre-reproductive age, it indicates:

• A. stable population
• B. declining population
• C. expanding population
• D. Data is insufficient

Answer 1

The correct option is B declining population

Age pyramid is a graphical representation of the age structure or the distribution of population according to age groups (pre-reproductive age group, reproductive age group, and post-reproductive). By plotting these groups of individuals three different types of age pyramid are formed, namely expanding, stable, and declining.

For the declining age pyramid, the number of individuals in reproductive age is more than pre-reproductive age. This type of pyramid represents low fertility, low death, high life expectancy and increased ageing of the population.

For the expanding age pyramid the number of pre-reproductive individuals is higher than reproductive individuals which in turn is higher than post-reproductive individuals.

For the stable age pyramid, the number of pre-reproductive individuals and reproductive individuals are more or less equal and higher than post-reproductive individuals.