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Compare the sex ratio in developed vs. developing countries.
Developed: More women. Developing: Often more men due to cultural preferences and sex-selective abortions.
Compare the population pyramids of Stage 2 and Stage 4 countries in the DTM.
Stage 2: Wide base, narrow top. Stage 4: More rectangular shape, relatively even distribution across age groups.
Compare the dependency ratio in countries with youthful vs. aging populations.
Youthful: High dependency ratio due to a large proportion of young dependents. Aging: High dependency ratio due to a large proportion of elderly dependents.
Compare the fertility rates in Stage 1 and Stage 4 of the DTM.
Stage 1: High fertility rates. Stage 4: Low fertility rates.
Compare the mortality rates in Stage 1 and Stage 4 of the DTM.
Stage 1: High mortality rates. Stage 4: Low mortality rates.
Compare the age structure of a university town and a retirement community.
University town: Lots of 15-24 year-olds. Retirement community: High percentage of people 60 and older.
Compare the population pyramids of Nigeria and Japan.
Nigeria: Wide base, narrow top (youthful). Japan: Narrow base, wide top (aging).
Compare the population growth in Stage 2 and Stage 3 of the DTM.
Stage 2: Rapid population growth. Stage 3: Slower population growth.
Compare the dependency ratio in Stage 2 and Stage 4 of the DTM.
Stage 2: High dependency ratio due to high birth rates. Stage 4: High dependency ratio due to aging population.
Compare the population pyramids of China and India regarding sex ratio.
Both countries have historically shown a male-skewed sex ratio, but the reasons and severity differ due to varying cultural practices and policies.
What is the effect of the one-child policy in China on the sex ratio?
It led to a significant gender imbalance with more men than women.
What is the effect of sex-selective abortions in India on the sex ratio?
It has skewed the sex ratio, leading to fewer women than expected.
What is the impact of a large elderly population on healthcare needs?
Increased demand for geriatric care, specialized medical facilities, and social support services.
What is the impact of a large youth population on education?
Increased demand for schools, teachers, and educational resources.
What is the effect of women having longer life expectancies on the sex ratio?
In developed countries, there are often more women than men, especially in older age groups.
How do occupational hazards affect the sex ratio?
Men often work in more dangerous jobs, leading to higher mortality rates and potentially affecting the sex ratio.
What is the effect of high fertility rates on age structure?
A larger proportion of young people, creating a youthful population structure.
What is the effect of low fertility rates on age structure?
A larger proportion of elderly people, creating an aging population structure.
How does a wide base in a population pyramid affect the dependency ratio?
Indicates a high birth rate and a large proportion of young dependents, increasing the dependency ratio.
How does a wide top in a population pyramid affect the dependency ratio?
Indicates a large proportion of elderly dependents, increasing the dependency ratio.
What is Population Composition?
The characteristics of a population, like age, gender, race, and occupation.
What is Sex Ratio?
The number of males for every 100 females in a population.
What is Age Structure?
The distribution of a population across different age groups.
What are Population Pyramids?
Bar graphs that show the distribution of a population by age and sex.
What is Dependency Ratio?
The proportion of people not in the workforce compared to the working-age population.
What is Fertility Rate?
The number of children born per woman during her reproductive years.
What is Mortality Rate?
The number of deaths in a given population per unit of time.
What is the Demographic Transition Model (DTM)?
A model that explains how a population changes over time through stages of birth and death rates.
Define 'youthful' age structure.
High proportion of young people, few elderly; high fertility rates, high dependency ratio.
Define 'aging' age structure.
Large proportion of elderly people, few young people; low fertility rates, high dependency ratio.