00:01
Hello everyone, in this question we have been given the diagram which shows the current population size for people who are below 50 years old in four different countries.
00:16
So, which country will be likely to have the largest population of people between 60 to 70 years of age in 20 years time? so, in the a population here we can see that the pyramid is increasing.
00:33
So, here we that this is the expanding population.
00:37
There the lower portion tells us about the pre -reproductive structure and the next level shows the reproductive population and the last one shows the post -reproductive population.
00:56
So, in this a country we can see that the birth rate is greater than the death rate.
01:02
So, that means here there is rapid growing population and this is a developing country.
01:08
Then in the b population we can see that here the percentage of the population in the pre -reproductive is very high and then it is decreasing like this.
01:23
So, this here is a very developing country.
01:27
Then in the c population here we can see that this has the stable population in which the pre -reproductive and reproductive age groups become more or less equal in size and this here shows the developed country and has the bell shaped pyramid...