AP Human Geography: Unit 2A Population Summative Review

Comprehensive practice flashcards covering Unit 2A Population concepts from the AP Human Geography exam review guide, including population density measures, the Demographic Transition Model, Malthusian theory, population pyramids, and demographic policies.

What type of population measure is represented on this map of Africa, and how is it defined?

Arithmetic density, which measures the number of people per square kilometer of total land area.

Why do geographic areas around river deltas, upland lakes, and river valleys support higher population densities?

These regions have higher carrying capacities because proximity to reliable freshwater sources provides transportation, water for daily human needs, and water for agricultural practices.

What was an unintended consequence of China's antinatalist one-child policy implemented in 1980?

The male population became much higher than the female population due to a cultural preference for male children.

Based on demographic data where Germany has a birth rate of $9\text{ per } 1{,}000$ and a death rate of $11\text{ per } 1{,}000$, what is its rate of natural increase?

Germany has a negative rate of natural increase because its death rate exceeds its birth rate.

What population distribution pattern is depicted for western China on this graduated symbol map?

Western China has a low arithmetic density with sparse settlement compared to the heavily clustered urban concentrations in eastern China.

What is an environmental impact of China's concentrated population distribution on agricultural land?

Large urban populations and urban expansion into agricultural land place high demands on limited soil and water resources, requiring intensive inputs like fertilizers and pesticides to increase the carrying capacity of the land.

What urban challenge is most likely to occur in China if rural-to-urban migration continues?

Housing shortages in urban areas will be common due to extremely high population densities in clusters of large cities.

How do primary causes of death differ between Stage 2 countries (such as in West Africa) and Stage 4 countries (such as in Western Europe)?

In Stage 2 countries, deaths frequently occur from outbreaks of epidemic diseases due to a lack of reliable healthcare and sanitation; in Stage 4 countries, deaths primarily stem from chronic disorders like heart disease related to old age and lifestyle choices.

Which global development best explains the historic decrease in mortality rates worldwide?

Better hygiene and sanitation practices, which help prevent diseases and illnesses.

Why will Japan face significant demographic challenges in 30 years due to its low birth rate and high life expectancy?

A large portion of the current working-age population will age into retirement and become elderly dependents, requiring increased public funding for health care.

According to the Demographic Transition Model shown in this diagram, under what condition does high population growth occur?

Population growth remains high when birth rates are significantly higher than death rates (most notably during Stage 2 and early Stage 3).

Why will Bangladesh continue to experience population growth until after 2050 even though its total fertility rate dropped to replacement level ($2.1$)?

Bangladesh has a large youthful population that will age into childbearing years and produce a generation larger than older cohorts (demographic momentum).

What demographic concern leads European countries like Belgium to implement pronatalist policies such as subsidized childcare and parental leave?

Concerns about an aging population and declining birth rates, prompting policies designed to encourage couples to have larger families.

Which population characteristic is directly associated with total fertility rates exceeding $5.0$ in sub-Saharan Africa?

A high youth dependency ratio, which creates resource strains as death rates decline while child populations remain large.

What demographic trend is indicated by the broad base of this 2017 population pyramid for Ghana?

The population has a high total fertility rate and a high population growth rate.

According to Malthusian theory, how do new agricultural technologies affect population checks?

They contribute to a stable and increased food supply, thereby reducing positive checks (such as war and famine) on population growth.

What factor best explains the worldwide decline in infant mortality rates between 1970–1975 and 2005–2010 shown in this chart?

Improved health care and nutrition before, during, and after pregnancy across all regions.

What type of community is typically represented by an inverted population pyramid that is wide at the top and narrow at the bottom?

A population of retirees or an age-restricted community.

What consequence did Thomas Malthus predict for less developed countries experiencing high birth rates?

Famine and starvation would occur as population growth outpaces agricultural food production.

Which world region exhibits negative rates of natural increase in late Stage 4 of the Demographic Transition Model?

Eastern Europe (such as Ukraine and Romania), where crude death rates ($13\text{ per } 1{,}000$) exceed crude birth rates ($11\text{ per } 1{,}000$).

How does neo-Malthusian theory explain twenty-first-century famines, such as the one in South Sudan?

Rapid population growth outpaces food supply during times of drought and war, and without technological innovation, famine ensues unless external food aid is provided.

How is population density displayed across the maps of Florida shown here?

At different scales of analysis using administrative units (county, postal zip code, and census tract).

What population pattern is characteristic of more developed countries?

Declining levels of fertility and mortality, leading to older age structures and decreasing proportions of youth and working-age adults.

What relationship exists between female educational attainment and total fertility rates in the United States and Canada?

An increase in the percentage of women who are more highly educated correlates with a decline in total fertility rates.

What pronatalist policy could South Korea adopt to address its record-low total fertility rate of $1.1$?

Decreasing the cost of childcare so that families can afford to have more children.

How would government policymakers in Spain use data from the 2017 population pyramid shown here?

Data on the large middle-aged cohort would be used to plan for retirement, pension funding, and social security benefits as this group ages.

How do the economic roles of women change as countries transition from peripheral to core status?

More women attain higher levels of education and work in professional jobs rather than in agriculture or solely inside the home.

Which two demographic metrics are required to calculate a country's rate of natural increase (RNI)?

Crude birth rate and crude death rate.

What does the total fertility rate (TFR) represent?

The average number of children a woman can expect to have during her childbearing lifetime.

Using the doubling time formula ($\frac{70\text{ years}}{\text{RNI (\%)}}$) and India's 2018 natural increase rate of $1.4\%$, what is India's doubling time?

$$\frac{70\text{ years}}{1.4\%} = 50\text{ years}$$

What total fertility rate is required for a population to replace itself, and what does China's 2018 TFR of $1.8$ indicate?

Replacement-level fertility is $2.1\text{ to } 2.3$; China's TFR of $1.8$ indicates that its population will be unable to replace itself over time and will decline.

Why are China's population statistics considered unusual for an economy undergoing industrialization?

China has an unusually low birth rate, rate of natural increase, and total fertility rate (partly due to antinatalist policies), as well as a death rate similar to fully industrialized countries.