Population Age Structure and Growth: Concept 6-3
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Questions and Answers

Why can a country with a large percentage of people younger than 15 experience rapid population growth?

  • High death rates among older individuals
  • Low birth rates among younger individuals
  • Demographic momentum (correct)
  • Decrease in life expectancy

What does a population's age structure refer to?

  • The number or percentage of males and females in different age groups (correct)
  • The geographic distribution of a population
  • The political system of a country
  • The economic status of a population

If a country has a narrow base in its age-structure diagram, what does this indicate?

  • High birth rates
  • Migration patterns
  • High death rates among young individuals
  • Low birth rates (correct)

What age group is considered postreproductive in a population age-structure diagram?

<p>Ages 45 and older (D)</p> Signup and view all the answers

Why might the number of births continue to rise for several decades in a country even if women have only one or two children on average?

<p>Demographic momentum (C)</p> Signup and view all the answers

What percentage of the world's population was younger than age 15 in 2009?

<p>28% (B)</p> Signup and view all the answers

Why will almost all future human population growth take place in developing countries according to the text?

<p>Different population age structure between developed and developing countries (B)</p> Signup and view all the answers

How is the baby boom generation described in the text?

<p>They make up about 36% of all adult Americans (B)</p> Signup and view all the answers

Which country had the world's highest percentage of elderly people and lowest percentage of young people as of 2009?

<p>Japan (D)</p> Signup and view all the answers

What demographic change occurs when a country experiences a 'baby bust' or 'birth dearth'?

<p>Rise in the proportion of older people (C)</p> Signup and view all the answers

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