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ap human geography unit 2

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Age Distribution
the distributions of age in a population
Carrying Capacity
the largest number of people that the environment of a particular area can support
Cohort
a population group that's distinguished by a certain characteristic
Demographic Equation
equation that summarizes the amount of growth or decline in a population during a certain period of time, also taking into account net migration and natural increase
Demographic Transition Model
sequence of demographic changes in which a country mover from a high CDR and a high CBR, to having a low CDR and a low CBR
Dependency Ratio
ratio of the economically dependent part of the population to the productive part
Doubling Time
time it takes for a country to double its population
Ecumene
meeting place for the world's religions and ideologies
Infant Mortality Rate
however many infants die per thousand per year
J-curve
the correlation between stability and openness
Maladaptation
an adaptation that does more harm than good
Thomas Malthus
British demographer that suggested that a massive plague or epidemic would 'check' the population
Mortality
, and mortality rate being how many people die per thousand, CDR
Natality
birth rate, or CBR
Neo-Malthusian
Advocacy of population control programs to enough resources for current and future populations
Population Densities
measurements of number of people per a unit of land area
Population Distributions
the distributions of different specifications of populations
Population Explosion
population booms (low CDR and high CBR)
Population Projection
the estimated population in a certain time in the future
Population Pyramid
a pyramid-like diagram that displays the population distributions between age and sex
Rate of Natural Increase
difference of CDR and CBR in a given country in a year
S-curve
the curve that defines how rate at which technology is advancing
Sustainability
how well a country can supply its residents with the proper needs
Zero Population Growth
CDR and the CBR of a country even out
Activity Space
places in a local area in which cyclic movement occurs
Chain Migration
people follow others of preceding friends or family I their migratory paths
Cyclic Movement
repetitive movement in a short periods of time (back-and-forth movement)
Distance Decay
the interaction of places decreases as the distance increases
Gravity Model
interaction of places based on their population, sizes, and distances between them
Internal Migration
movement within a country's borders
Intervening Opportunity
an opportunity that arises or occurs before the reaching of the initial goal
Migration Patterns
patterns of movement; Intercontinental- over countries' borders, Interregional- within a region or certain area, Rural-Urban- from a rural area to an urban area (farm to a city)
Migratory Movement
movement that consists of one person migrating from one place to another
Periodic Movement
movement involving longer periods of time further away from home
Push-Pull Factor
a reason why a migrant might leave or move to a place
Refugee
a person who has a fear of being caught in means of race, religion, ethnicity, group, or political views
Space-Time Prism
set of all points that can be reached by an individual given a maximum possible speed from a starting point
Step Migration
migration involving people to move upward as far as rural to urban, such as farm, then the outskirts, an average neighborhood, then to a city
Transhumance
a system of pastoral farming in which ranchers move livestock according to the seasonal availability of pastures
Transmigration
movement that consists of one person migrating from one place to another