Question

How does an age pyramid for the human population at a given point of time help the policy makers and planning for the future?

Answer 1

A population pyramid is also called an age pyramid which is a graphical illustration that shows the distribution of various age groups in a population. The shape of a pyramid can be formed when the population is growing.

Complete answer:
The structure of the age pyramid helps to determine the growing status of the population and helps us to make an opinion saying if the population is growing or stabilizing or declining.
On the basis of this information the government and policy makers would be able to form an informed conclusion on making policies for that particular kind of population.
The ideal population that is looked after by all the policy makers in order to build up a policy is a population pyramid in which the population of pre-reproductive population would show a stable and would not lead to either depletion of earthly resources or human resources.

Note:
Population pyramid is helpful in many ways as it can be helped to compare the differences in male and female populations.
Population pyramids also help in showing the number of dependents and general structure of population at any given moment.
In a country which has both birth and death rates high the population pyramids are broader at the base and narrower towards the top.
Most of the countries which are poor in economic GDP will have a population pyramid where birth and death rates are high. A good example is Kenya.
Population pyramids are of three types; age and sex, expansive and constrictive and stationary.