What is meant by population growth? Explain the ways in which it is expressed.
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Growth of population refers to the change in the number of inhabitants of a country or territory during a specific period of time, e.g. during last ten years. Such a change can be expressed in two ways : in terms of absolute numbers and in terms of percentage change per year.
The absolute number is obtained by subtracting the earlier population from the later population.
The rate of population increase is studied in per cent per annum e. g. a rate of increase of 2 per cent per annum means that in a given year there has been an m'crease of two persons for every 100 persons in the base population. It is called annual growth rate.
The absolute number is obtained by subtracting the earlier population from the later population.
The rate of population increase is studied in per cent per annum e. g. a rate of increase of 2 per cent per annum means that in a given year there has been an m'crease of two persons for every 100 persons in the base population. It is called annual growth rate.
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