Human Population Dynamics - AP Environmental Science
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What is 'total fertility rate' (TFR)?
What is 'total fertility rate' (TFR)?
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The average number of children a woman will have in her lifetime. Key indicator of reproductive patterns and demographics.
The average number of children a woman will have in her lifetime. Key indicator of reproductive patterns and demographics.
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Identify one impact of high population density.
Identify one impact of high population density.
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Increased competition for resources. Limited space intensifies competition for basic needs.
Increased competition for resources. Limited space intensifies competition for basic needs.
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What is the definition of 'population density'?
What is the definition of 'population density'?
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Number of individuals per unit area or volume. Measures crowding and resource competition intensity.
Number of individuals per unit area or volume. Measures crowding and resource competition intensity.
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What does a 'column-shaped' age structure indicate?
What does a 'column-shaped' age structure indicate?
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Stable population. Equal birth and death rates maintain constant size.
Stable population. Equal birth and death rates maintain constant size.
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What is the current estimated world population (2023)?
What is the current estimated world population (2023)?
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Approximately 8 billion. Reached this milestone in late 2022.
Approximately 8 billion. Reached this milestone in late 2022.
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What is the current estimated world population (2023)?
What is the current estimated world population (2023)?
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Approximately 8 billion. Reached this milestone in late 2022.
Approximately 8 billion. Reached this milestone in late 2022.
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State the formula for crude death rate (CDR).
State the formula for crude death rate (CDR).
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CDR = (Number of Deaths / Total Population) × 1,000. Standard formula for measuring deaths per population.
CDR = (Number of Deaths / Total Population) × 1,000. Standard formula for measuring deaths per population.
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State the formula for crude birth rate (CBR).
State the formula for crude birth rate (CBR).
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CBR = (Number of Births / Total Population) × 1,000. Standard formula for measuring births per population.
CBR = (Number of Births / Total Population) × 1,000. Standard formula for measuring births per population.
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Find the doubling time for a population with a 2% growth rate.
Find the doubling time for a population with a 2% growth rate.
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35 years. Using Rule of 70: $70 ÷ 2% = 35$ years.
35 years. Using Rule of 70: $70 ÷ 2% = 35$ years.
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How does emigration affect population size?
How does emigration affect population size?
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Decreases population size. Removes individuals from the existing population.
Decreases population size. Removes individuals from the existing population.
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What is the definition of carrying capacity?
What is the definition of carrying capacity?
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The maximum population size an environment can sustain indefinitely. Determined by available resources and environmental limits.
The maximum population size an environment can sustain indefinitely. Determined by available resources and environmental limits.
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Calculate the crude death rate: Deaths=30, Population=3000.
Calculate the crude death rate: Deaths=30, Population=3000.
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10 deaths per 1,000 individuals. $(30 ÷ 3000) × 1000 = 10$ per 1,000.
10 deaths per 1,000 individuals. $(30 ÷ 3000) × 1000 = 10$ per 1,000.
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How does immigration affect population size?
How does immigration affect population size?
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Increases population size. Adds individuals to the existing population.
Increases population size. Adds individuals to the existing population.
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What does the term 'demographic transition' describe?
What does the term 'demographic transition' describe?
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The shift from high birth and death rates to low birth and death rates. Occurs as societies develop economically and socially.
The shift from high birth and death rates to low birth and death rates. Occurs as societies develop economically and socially.
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Identify the formula for population growth rate.
Identify the formula for population growth rate.
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Population Growth Rate = (Births - Deaths) / Total Population × 100. Net change expressed as percentage of total population.
Population Growth Rate = (Births - Deaths) / Total Population × 100. Net change expressed as percentage of total population.
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Identify one characteristic of a post-industrial society.
Identify one characteristic of a post-industrial society.
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Low birth and death rates. Indicates completed demographic transition stage.
Low birth and death rates. Indicates completed demographic transition stage.
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What is the definition of 'population density'?
What is the definition of 'population density'?
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Number of individuals per unit area or volume. Measures crowding and resource competition intensity.
Number of individuals per unit area or volume. Measures crowding and resource competition intensity.
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What is 'total fertility rate' (TFR)?
What is 'total fertility rate' (TFR)?
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The average number of children a woman will have in her lifetime. Key indicator of reproductive patterns and demographics.
The average number of children a woman will have in her lifetime. Key indicator of reproductive patterns and demographics.
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Find the birth rate: Births=20, Population=1000.
Find the birth rate: Births=20, Population=1000.
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20 births per 1,000 individuals. $20 ÷ 1000 × 1000 = 20$ per 1,000.
20 births per 1,000 individuals. $20 ÷ 1000 × 1000 = 20$ per 1,000.
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What is the significance of a high infant mortality rate?
What is the significance of a high infant mortality rate?
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Indicator of poor health conditions. Reflects inadequate prenatal and infant healthcare systems.
Indicator of poor health conditions. Reflects inadequate prenatal and infant healthcare systems.
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Which option describes 'age structure diagram'?
Which option describes 'age structure diagram'?
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A graphical illustration of the age distribution within a population. Shows population structure by age and gender groups.
A graphical illustration of the age distribution within a population. Shows population structure by age and gender groups.
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How are birth and death rates expressed?
How are birth and death rates expressed?
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Per 1,000 individuals per year. Standard demographic measurement for comparison purposes.
Per 1,000 individuals per year. Standard demographic measurement for comparison purposes.
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What is the definition of 'replacement-level fertility'?
What is the definition of 'replacement-level fertility'?
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The average number of children a couple must have to replace themselves. Maintains stable population size over generations.
The average number of children a couple must have to replace themselves. Maintains stable population size over generations.
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What is the replacement-level fertility rate in developed countries?
What is the replacement-level fertility rate in developed countries?
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Approximately 2.1. Accounts for infant mortality and demographic factors.
Approximately 2.1. Accounts for infant mortality and demographic factors.
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Identify one environmental impact of urbanization.
Identify one environmental impact of urbanization.
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Loss of natural habitats. City expansion destroys ecosystems and wildlife areas.
Loss of natural habitats. City expansion destroys ecosystems and wildlife areas.
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What is a common cause of urban sprawl?
What is a common cause of urban sprawl?
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Increased automobile use. Car-dependent development spreads cities outward unnecessarily.
Increased automobile use. Car-dependent development spreads cities outward unnecessarily.
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What is the definition of 'urban sprawl'?
What is the definition of 'urban sprawl'?
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The uncontrolled expansion of urban areas. Low-density development consumes excessive land resources.
The uncontrolled expansion of urban areas. Low-density development consumes excessive land resources.
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Identify an example of a density-independent factor.
Identify an example of a density-independent factor.
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Natural disasters. Affects populations regardless of their density levels.
Natural disasters. Affects populations regardless of their density levels.
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What is one effect of reduced fertility rates?
What is one effect of reduced fertility rates?
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Population aging. Fewer births create disproportionately older population structure.
Population aging. Fewer births create disproportionately older population structure.
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Identify one impact of high population density.
Identify one impact of high population density.
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Increased competition for resources. Limited space intensifies competition for basic needs.
Increased competition for resources. Limited space intensifies competition for basic needs.
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