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MCHS AP Human Geo2
Unit 2: Population- Migration and Dispersion
Question | Answer |
---|---|
Age Distribution | (Population Pyramid) Used to show development, significant events in countries, etc. |
Carry capacity | The population level that can be supported, given the quantity of food, habitat, water |
Cohort | Population of various age categories in an age-sex population pyramids. Used to show the stage of a country in the Demographic Transition Model |
Demographic Equation | births-deaths+net migration |
Demographic Momentum | The tendency for growing population to continue growing after a fertility decline because of young age distribution |
Demographic Transition Model | Stage 1: Low Growth Stage 2: High Growth Stage 3: Moderate Growth Stage 4: Low Growth Stage 5: Zero/Negative Growth (not officially a stage) |
Dependency Ratio | Number of people who are too young or too old to work compared to number or people who can work |
Doubling Time | Number of years it takes to double a population |
Ecumene | Proportion of Earth's surface occupied by permanent human settlement. |
Infant Mortality Rate | Annual number of infant deaths compared to live births |
J-Curve | In a population pyramid, it shows exponential growth. |
Thomas Malthus | Geographer that first started worrying about overpopulation. People reproduce geometrically while food is produced arithmetically. |
Natality (Crude Birth Rate) | Ratio of live births in an area to the population of that area |
Overpopulation | Relationship between the number of people on Earth and the availability of resources |
Population Distributions | Arrangement of a feature in space |
Population Explosion | Sudden increase in population |
Population Projection | Predicts the future population of an area or world |
Rate of Natural Increase | Percentage by which a population grows in a year |
Standard of Living | Refers to the quality and quantity of goods and services available to people and the way they are distributed within a population |
Sustainability | Providing the best outcomes for human and natural environments both in the present and the future |
Underpopulation | refers to the sharp decrease in a region's population |
Zero Population Growth | Crude birth rate = crude death rate, thus natural increase is zero |
Chain Migration | When one family member/group migrates to a country and other groups follow shortly after |
Cyclic Movement | Trends in migration that have a clear cycle |
Forced Migration | When people are removed from their counties and forced to live elsewhere because of war, natural disaster, government instability |
Gravity Model | Predicts that the optimal location of a service is directly related to the number of people in the area and inversely related to the distance people must travel to access it |
Internal Migration | Permanent movement within a country |
Intervening Opportunity | Environmental or cultural feature that helps migration |
Intercontinental Migration | Permanent movement from one county to a different country within the same continent. |
Interregional Migration | Permanent movement from one region of a country to another region |
Rural-Urban Migration | Permanent movement from rural area to city |
Push-pull factors | Factors that induce people to leave or come to a location |
Transhumance | Seasonal migration of livestock between mountains and lowland pasture areas |