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            What are population pyramids? How do they help in understanding about the population of a?                                                                                                                                                                        

Answer:

A population pyramid, also called the age and sex pyramid, helps us to understand the composition of population in any country. It shows the following:

(a) The total population divided into various age groups e.g. 5 to 9 years 10 to 14 years.

(b) The percentage of the total population subdivided into males and females in each of these groups.

(c) The number of children below 15 years are shown at the bottom and reflect the levels of births and the size of the top shows the number of aged people and reflects the number of deaths.

(d) The population pyramid also tells us how many dependents are there in a country. Population below 15 years are young dependents and people aged over 65 years are elderly dependents and working age (15 years-65 years) are the economically active.