All flashcards
Flashcard 1: What type of population growth is indicated by a bulging middle in an age structure diagram?
Answer: Past population boom. Historical period of high fertility.
Flashcard 2: What does a concave shape in an age structure diagram indicate?
Answer: High mortality rates. Deaths reduce population at older ages.
Flashcard 3: What does an age structure diagram with a uniform taper indicate?
Answer: Balanced birth and death rates. Stable population with consistent vital rates.
Flashcard 4: Which age structure diagram shape indicates a country in the post-industrial stage?
Answer: Rectangular or constrictive. Developed nations have low growth rates.
Flashcard 5: What does an age structure diagram represent?
Answer: Distribution of a population by age and sex. Shows population composition visually by demographic groups.
Flashcard 6: What does an age structure diagram with a bulging bottom half suggest?
Answer: High birth rates. Many young people indicate recent fertility increases.
Flashcard 7: What does the width of bars in an age structure diagram represent?
Answer: Population size of each age group. Bar width corresponds to cohort size.
Flashcard 8: What does a tapering base in an age structure diagram suggest for future population size?
Answer: Potential decline. Fewer births mean smaller future generations.
Flashcard 9: Identify the age group most affected by high mortality, as shown in an age structure diagram.
Answer: Older age groups. Mortality increases naturally with advancing age.
Flashcard 10: What does a columnar age structure diagram indicate about birth and death rates?
Answer: Low birth and death rates. Stable populations have balanced vital rates.
Flashcard 11: In age structure diagrams, what does a tapering top suggest?
Answer: High mortality in older age groups. Natural mortality increases with age.
Flashcard 12: Identify the typical shape of an age structure diagram for a declining population.
Answer: Inverted pyramid. Top-heavy shape from low birth rates.
Flashcard 13: Identify the demographic transition stage associated with a rectangular age structure diagram.
Answer: Stage 4: Low Growth. Low growth characterizes developed nations.
Flashcard 14: What does a bulge in the middle of an age structure diagram suggest?
Answer: Past high birth rates. Baby boom generation creates visible bulge.
Flashcard 15: How can you identify a population undergoing demographic transition in an age structure diagram?
Answer: Changes in shape over time. Demographic transition creates evolving population structure.
Flashcard 16: What does a concave shape in an age structure diagram indicate?
Answer: High mortality rates. Deaths reduce population at older ages.
Flashcard 17: Which age group is typically the largest in a rapidly growing population?
Answer: Younger age group. High birth rates create large youth populations.
Flashcard 18: What does a narrow base in an age structure diagram indicate?
Answer: Declining population. Few births means fewer young people.
Flashcard 19: What shape is an age structure diagram for a stable population?
Answer: Rectangular. Equal birth and death rates create uniform width.
Flashcard 20: What does a broad top in an age structure diagram indicate?
Answer: Large elderly population. Low mortality and fertility create aging populations.
Flashcard 21: How does an age structure diagram indicate a demographic dividend?
Answer: Large working-age population. Optimal ratio of workers to dependents.
Flashcard 22: What type of population growth is indicated by a bulging middle in an age structure diagram?
Answer: Past population boom. Historical period of high fertility.
Flashcard 23: What is the demographic implication of a large working-age population in an age structure diagram?
Answer: Economic growth potential. Large workforce drives economic productivity.
Flashcard 24: Identify the demographic trend depicted by an age structure diagram with a large youth population.
Answer: Potential rapid growth. Large reproductive cohort enables future growth.
Flashcard 25: What does a constrictive shape in an age structure diagram indicate about a population's future?
Answer: Potential decline. Narrow base predicts population shrinkage.
Flashcard 26: What does an age structure diagram with a wide middle suggest about economic pressures?
Answer: Higher economic demand. Large working-age population needs resources and jobs.
Flashcard 27: Identify the age structure diagram shape for a country in the pre-industrial stage.
Answer: Pyramid with wide base. High birth and death rates create pyramid.
Flashcard 28: What does an age structure diagram with a narrow youth section suggest about future workforce size?
Answer: Shrinking workforce. Fewer young people mean smaller future workforce.
Flashcard 29: In which stage of demographic transition is a population with a pyramid-shaped age structure diagram?
Answer: Stage 2: Early Expanding. High birth rates characterize early expansion.
Flashcard 30: How does a high dependency ratio appear in an age structure diagram?
Answer: Large base and top. Many dependents relative to working-age population.