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Question : Define 'zero population growth rate'. Draw a age pyramid for the same.

Answer»

Solution :• When birth RATE becomes EQUALS to DEATH rate then there is no GROWTH, it is called as zero population growth rate.
• It is obtained when - 
• The number of post - reproductive age GROUP individuals are less in number and both prereproductive and reproductive stages are in the same level.
• An inverted bell-shaped age pyramid is obtained.


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