Unit 2 Vocab Flashcards
Demographics
the scientific study of population characteristics
Crude Birth Rate
the number of live births per year per 1,000 people
Total Fertility Rate
the number of live births per woman throughout her lifetime
Crude Death Rate
the number of deaths per year per 1,000 people
NIR
the percentage by which a population grows in a year
Infant Mortality Rate
the number of deaths below 1 year of age compared to the total number of births
Life Expectancy
how long the average person lives per country
Carrying Capacity
the maximum population that the Earth can sustain
Arithmetic Density
the total number of people divided by the total land area
Physiological Density
number of people per unit of arable land
Agricultural Density
number of farmers per unit of arable land
Potential Support Ratio
the number of working-age people (15-64) for the number of people 65+
Dependency Support Ratio
the number of people too old or too young to work compared to the number of people in their “productive years”
Doubling Time
a way to estimate the time it takes to double a number based on its growth rate; take the number 70 and divide it by the growth rate; the result is the number of years required to double
Demographic Transition Model
shows the birth rates, death rates, and population increase/decrease in different stages
