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Question 1.Why are crude birth and death rates regarded as only broad indicators of fertility and mortality?
Definitions: Crude birth rate: the number of births per thousand population in a given year. Crude death rate: the number of deaths per thousand population in a given year.
Fertility: the natural capability of giving life. Mortality: the number of deaths in a given time.
Crude birth rate is a broad indicator as it does not take into account the age and sex distribution of the populationfor example:
>Those in the young dependant are not considered as they have not passed the child bearing age of 16-49. >Which means that those in the economically active affect fertility rates more than any age group as they are in the child bearing age
>Those in the elderly dependant affect fertility as the women are past the child bearing age and so are the men.
Death rate is also only a broad indicator as it is also heavily influenced by the age structure of the population for example:
>If they was a high death rate in the economically dependant the fertility rate will be affected as this is the child bearing stage.
>High crude death rates in the elderly dependant will not affect fertility as both male and female have passed the child bearing age people in this age group.