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The share of older people in a population keeps rising. What is this process called?

APopulation explosion
BDemographic dividend
CUrbanisation trend
DPopulation ageing
Answer & Solution
Correct answer: D. Population ageing
1. Population ageing is a twentieth century phenomenon. 2. Life expectancy rose in developed countries. 3. Falling birth rates cut the share of children. _Source: syllabus Geography, Fundamentals of Human Geography, Chapter 3, Population Composition._
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