Describe in brief four main characteristics of age-structure of world population
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They can be: stable: patterns of birth and death are unchanging over time. stationary: both low birth and death rates (they slope gently inward and have a rounded top) expansive: slope dramatically inward and upward from the base, indicating that a population has both high birth and death rates.
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They can be: stable: patterns of birth and death are unchanging over time. stationary: both low birth and death rates (they slope gently inward and have a rounded top) expansive: slope dramatically inward and upward from the base, indicating that a population has both high birth and death rates.
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