APHUG VOCAB WORDS Flashcards
Emigration
the act of leaving one’s own country to settle permanently in another
Environmental degradation
the deterioration of the environment through depletion of resources such as air, water and soil
Immigration
the action of coming to live permanently in a foreign country.
Population distribution
the spread of people across the world
Industrial revolution
the transition to new manufacturing processes in Europe and the United States
Agricultural density
the number of farmers per unit area of farmland
Arable land
land capable of being ploughed and used to grow crops
Arithmetic density
the number of people per unit area of land
Ecumene
portion of earth’s surface occupied by permanent human settlement
Intervening obstacle
an environmental or cultural feature that hinders migration
Intervening opportunity
a feature that causes a migrant to choose a destination other than his original one
Physiological density
the number of people per unit area of arable land
Pull factor
something that attracts people to go and live in a particular place
Push factor
something that makes people want to leave a place or escape from a particular situation
Carrying capacity
the maximum number of people who can be realistically sustained by the geography of that area
Overpopulation
when a region has exceeded its carrying capacity
Replacement-fertility level
the total fertility rate at which a population exactly replaces itself
Age/sex ratio
describes the ages and number of males and females within a given population
Population pyramid
A model used to show the age and sex distribution of a particular population
Zero population growth
the maintenance of a population at a constant level
Crude birth rate
the total number of live births per 1,000 people
Crude death rate
the number of deaths in a per 1,000 people