All Flashcards
What does population composition tell us?
It helps us figure out what a population needs and how to best support it, informing policies and resource allocation.
How does life expectancy affect sex ratio?
Women generally have longer life expectancies, leading to more women in older age groups in developed countries.
How do cultural preferences affect sex ratio?
Some cultures prefer male children, leading to sex-selective abortions and skewed sex ratios.
What does a youthful age structure indicate about a country?
High fertility rates and a large proportion of young people, often found in developing countries.
What does an aging age structure indicate about a country?
Low fertility rates and a large proportion of elderly people, often found in developed countries.
What can be learned from population pyramids?
Dependency ratio, fertility rates, mortality rates, gender balance, population projections, and population growth.
How does Stage 1 of the DTM affect population growth?
High birth and death rates result in slow or stable population growth.
How does Stage 2 of the DTM affect population growth?
High birth rates and declining death rates lead to rapid population growth.
How does Stage 3 of the DTM affect population growth?
Declining birth rates and slower population growth.
How does Stage 4 of the DTM affect population growth?
Low birth and death rates result in slow or stable population growth.
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.