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The progressive and regressive population structures represent different demographic trends in a population's age distribution. 1. Progressive Population Structure Definition: A population with a high proportion of young individuals (children and youth), indicating a growing population. Age Pyramid Shape: Broad base, narrowing towards the top. Birth Rate: High. Death Rate: High or moderate. Growth Rate: High (population expansion). Example Countries: India, Nigeria, Pakistan. 2. Regressive Population Structure Definition: A population with a higher proportion of older individuals, indicating a declining population. Age Pyramid Shape: Narrow base, wider middle and top. Birth Rate: Low. Death Rate: Low or moderate. Growth Rate: Negative or very low (population decline). Example Countries: Japan, Germany, Italy. Key Differences A progressive population structure leads to rapid population growth, while a regressive structure leads to population decline and economic challenges related to aging.
March 19, 2025
Amos
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