APHUG Unit 2 Vocab. Flashcards
Emigration
People who move out of the country
Environmental degradation
Deterioration of the environment through depletion of natural resources
Immigration
People who move into a country
Population distribution
The pattern of human settlement
Industrial Revolution
Changes in technology that increased manufacturing productivity
Agricultural density
The number of farmers per unit area of farmland
Arable land
Land that is able to grow crops
Arithmetic density
The number of people per unit area of land
Ecumene
Portion of Earth with human settlement
Intervening obstacle
Barriers that make reaching a desired destination more difficult
Intervening oppurtunity
Environmental or cultural feature that hinders migration
Physiological density
The number of people per unit area of arable land
Pull factor
Migration due to negative conditions and circumstances
Push factor
Migration due to positive conditions and circumstances
Carrying capacity
The population that a region can support
Overpopulation
The growth of population beyond what an area can support
Replacement-fertility level
The total fertility rate at which a population replaces itself from one generation to the next
Age/sex ratio
The cumulative result of past trends of fertility, mortality and migration
Population pyramid
Tool to study population with age and sex
Zero population growth
The maintenance of a population at a constant level
Crude birth rate
The number of births per year for each 1,000 people
Crude death rate
The number of deaths per year for each 1,000 people