AP Environmental Science Flashcards: Demographic Transition

What this deck covers

This deck focuses on Demographic Transition, giving you a quick way to review the definitions, rules, and examples that matter most for AP Environmental Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What demographic trend is significant in Stage 4 countries?

Answer: Aging population. Longer lifespans create larger elderly populations over time.

Flashcard 2: Which stage may involve net migration as a demographic factor?

Answer: Stage 4. Immigration may compensate for low natural population growth.

Flashcard 3: Identify the stage where technological advancement influences population growth.

Answer: Stage 2. Industrial innovations improve nutrition, sanitation, and medicine.

Flashcard 4: What occurs in Stage 3 of the demographic transition?

Answer: Birth rates decline. Families choose smaller sizes due to economic and social changes.

Flashcard 5: What is one effect of improved healthcare in Stage 2?

Answer: Reduced mortality rates. Better sanitation, vaccines, and medical care save lives.

Flashcard 6: What factor leads to a demographic shift to Stage 2?

Answer: Improved medical care. Better healthcare reduces infant and maternal mortality significantly.

Flashcard 7: Identify the stage where life expectancy increases significantly.

Answer: Stage 2. Healthcare improvements dramatically extend average lifespan.

Flashcard 8: In which stage do countries typically have a high dependency ratio?

Answer: Stage 5. Many elderly relative to working-age population creates economic burden.

Flashcard 9: Identify the stage of rapid population growth.

Answer: Stage 2. Population explodes as death rates fall faster than birth rates.

Flashcard 10: What occurs in Stage 3 of the demographic transition?

Answer: Birth rates decline. Families choose smaller sizes due to economic and social changes.

Flashcard 11: What is a potential feature of Stage 5?

Answer: Aging population and declining birth rates. Below-replacement fertility leads to population shrinkage.

Flashcard 12: Which stage experiences a demographic shift due to urbanization?

Answer: Stage 3. City growth changes family economics and reproductive behavior.

Flashcard 13: What is a key feature of the demographic transition model?

Answer: Transition from high to low birth and death rates. Tracks population changes from pre-industrial to modern societies.

Flashcard 14: What factor leads to a demographic shift to Stage 2?

Answer: Improved medical care. Better healthcare reduces infant and maternal mortality significantly.

Flashcard 15: What economic transition occurs during Stage 3?

Answer: Shift from agriculture to industry. Economic development changes family structure and reproductive choices.

Flashcard 16: What is a major demographic characteristic of Stage 4?

Answer: Stable population size. Population growth essentially stops with balanced vital rates.

Flashcard 17: Identify a major demographic factor in Stage 4.

Answer: Low fertility rates. Contraception and economic factors reduce family sizes significantly.

Flashcard 18: Which stage might experience population decline?

Answer: Stage 5. Birth rates may fall below replacement level in developed nations.

Flashcard 19: In which stage do population growth rates begin to decline?

Answer: Stage 3. Birth rates start falling as economic conditions improve.

Flashcard 20: What is a key feature of the demographic transition model?

Answer: Transition from high to low birth and death rates. Tracks population changes from pre-industrial to modern societies.

Flashcard 21: Identify a social change during Stage 3.

Answer: Increased access to education. Women's education and workforce participation reduce fertility.

Flashcard 22: Which stage experiences a demographic shift due to urbanization?

Answer: Stage 3. City growth changes family economics and reproductive behavior.

Flashcard 23: Which stage is marked by stable population growth?

Answer: Stage 4. Birth and death rates reach equilibrium near replacement level.

Flashcard 24: What is one demographic outcome of Stage 5?

Answer: Population decline. Birth rates drop below replacement, shrinking total population.

Flashcard 25: Which stage may involve net migration as a demographic factor?

Answer: Stage 4. Immigration may compensate for low natural population growth.

Flashcard 26: What demographic trend is observed during Stage 2?

Answer: Decreasing death rates. Medical advances reduce mortality while fertility stays high.

Flashcard 27: Identify the stage where life expectancy increases significantly.

Answer: Stage 2. Healthcare improvements dramatically extend average lifespan.

Flashcard 28: Which stage might experience population decline?

Answer: Stage 5. Birth rates may fall below replacement level in developed nations.

Flashcard 29: What demographic trend is observed during Stage 2?

Answer: Decreasing death rates. Medical advances reduce mortality while fertility stays high.

Flashcard 30: What is the demographic transition model?

Answer: A model describing population change over time. Shows how birth and death rates change through economic development stages.

Flashcard 31: What characterizes the pre-industrial stage?

Answer: High birth and death rates. Limited medical care and high infant mortality define this stage.

Flashcard 32: Which stage is marked by changes in women's roles in society?

Answer: Stage 3. Women gain education and career opportunities, delaying childbearing.

Flashcard 33: Which stage is characterized by a demographic transition towards zero population growth?

Answer: Stage 4. Both birth and death rates stabilize at very low levels.

Flashcard 34: What is the primary cause of population stabilization in Stage 4?

Answer: Balanced birth and death rates. Both rates reach low, stable levels creating zero growth.

Flashcard 35: Which stage is marked by changes in women's roles in society?

Answer: Stage 3. Women gain education and career opportunities, delaying childbearing.

Flashcard 36: What is the primary cause of population stabilization in Stage 4?

Answer: Balanced birth and death rates. Both rates reach low, stable levels creating zero growth.

Flashcard 37: What change in birth rates occurs during Stage 4?

Answer: Birth rates stabilize. Fertility reaches replacement level, ending population growth.

Flashcard 38: What is a potential feature of Stage 5?

Answer: Aging population and declining birth rates. Below-replacement fertility leads to population shrinkage.

Flashcard 39: Identify a social change during Stage 3.

Answer: Increased access to education. Women's education and workforce participation reduce fertility.

Flashcard 40: What is a defining factor of the transition to Stage 3?

Answer: Family planning. Contraception access and reproductive education become widespread.

Flashcard 41: What economic transition occurs during Stage 3?

Answer: Shift from agriculture to industry. Economic development changes family structure and reproductive choices.

Flashcard 42: Identify a major demographic factor in Stage 4.

Answer: Low fertility rates. Contraception and economic factors reduce family sizes significantly.

Flashcard 43: Identify the stage of rapid population growth.

Answer: Stage 2. Population explodes as death rates fall faster than birth rates.

Flashcard 44: What is a defining factor of the transition to Stage 3?

Answer: Family planning. Contraception access and reproductive education become widespread.

Flashcard 45: What is the primary demographic trend in Stage 5?

Answer: Declining birth rates and aging population. Advanced societies may face population shrinkage challenges.

Flashcard 46: Which stage is characterized by a demographic transition towards zero population growth?

Answer: Stage 4. Both birth and death rates stabilize at very low levels.

Flashcard 47: What demographic trend is significant in Stage 4 countries?

Answer: Aging population. Longer lifespans create larger elderly populations over time.

Flashcard 48: What demographic change occurs in Stage 3?

Answer: Falling birth rates. Economic development and education reduce desired family size.

Flashcard 49: What characterizes the pre-industrial stage?

Answer: High birth and death rates. Limited medical care and high infant mortality define this stage.

Flashcard 50: What demographic change occurs in Stage 3?

Answer: Falling birth rates. Economic development and education reduce desired family size.

Flashcard 51: Which stage is characterized by declining death rates?

Answer: Stage 2. Death rates drop due to improved healthcare while birth rates remain high.

Flashcard 52: Which demographic transition stage is associated with industrialization?

Answer: Stage 2. Industrial development improves living standards and healthcare access.

Flashcard 53: What is a major demographic characteristic of Stage 4?

Answer: Stable population size. Population growth essentially stops with balanced vital rates.

Flashcard 54: What is the primary demographic trend in Stage 5?

Answer: Declining birth rates and aging population. Advanced societies may face population shrinkage challenges.

Flashcard 55: Which stage is characterized by declining death rates?

Answer: Stage 2. Death rates drop due to improved healthcare while birth rates remain high.

Flashcard 56: What is one effect of improved healthcare in Stage 2?

Answer: Reduced mortality rates. Better sanitation, vaccines, and medical care save lives.

Flashcard 57: What is one demographic outcome of Stage 5?

Answer: Population decline. Birth rates drop below replacement, shrinking total population.

Flashcard 58: What is the demographic transition model?

Answer: A model describing population change over time. Shows how birth and death rates change through economic development stages.

Flashcard 59: What is one consequence of an aging population in Stage 5?

Answer: Higher healthcare costs. More elderly require expensive medical care and social services.

Flashcard 60: In which stage do population growth rates begin to decline?

Answer: Stage 3. Birth rates start falling as economic conditions improve.