Answer:
Age structure is the number of people of different age group. (i) Generally the population is categorised into three broad age groups: (a) children, (b) adults and (c) aged. 
(ii) Most countries of Africa, Asia and Latin America have high birth rate and they have large size population in the lower age group. Countries having low birth rate and high life expectancy have more people in old age groups. (iii) If we draw a triangular shaped pyramid having wide base and taper top this is a typical diagram to show age and sex structure of populations. The base and apex-represent younger and oldest age groups respectively. (iv) This triangular pyramid is typical of less developed countries like Nigeria m Africa., Bangladesh, in Asia and Mexico in South -America. (v) Wide base means high birth rates. (vi) Tapered top indicates high death rates.
You need to login to perform this action.
You will be redirected in
3 sec
