AP Human Geo Unit 2.3 Vocab

agricultural density

the total number of farmers per unit of arable land

arable land

land that can be used to grow crops

arithmetic density

the total number of people per unit area of land; also called crude density

carrying capacity

the maximum population size an environment can sustain 

climate

the long-term patterns of weather in a particular area

crude birth rate(CBR)

the number of births in a given year per 1000 people in a given population

crude death rate (CDR)

the number of deaths in a given year per 1000 people in a given population 

demographics

data about the structures and characteristics of human populations

dependency ratio

the number of people in a dependent age group(under age 15 or age 65 and older) divided by the number of people in the working-age group(ages 15 to 64) multiplied by 100

dispersed

spread out

fertility

the ability to produce children

human migration

the permanent movement of people from one place to another

infant mortality rate (IMR)

the number of deaths of children under the age of 1 per 1,000 live births

landforms

the natural features of Earth’s surface

life expectancy

the average number of years a person is expected to live

mortality

deaths as a component of population change

physiological density

the total number of people per unit of arable land

population density

the number of people occupying a unit of land

population distribution

where people live in a geographic area

population pyramid

a graph that shows the age-sex distribution of a given population

sex ratio

the proportion of males to females in a population

subsistence agriculture

an agricultural practice that provides crops or livestock to feed one’s family and close community using fewer mechanical recourses and more people to care for the crops and livestock

temperate climate

a climate with moderate temperatures and adequate precipitation totsamounts

total fertility rate(TFR)

the average number of children one woman in a given country or region will have during her childbearing years (ages 15 to 49)