Ap HuG Lhhs
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| 34940758 | Demography | Study of populations | |
| 34940759 | Census | A period count of the population | |
| 34940760 | Population density | The number of individuals per unit area | |
| 34940761 | Arithmetic population density | The population of a country or region expressed as an average per unit area. | |
| 34940762 | Physiologic population density | The number of people per unit area of agriculturally productive land | |
| 34940763 | Population composition | The structure of a population in terms of age, sex and other properties such as marital status and education | |
| 34940764 | Age-sex pyramid | A graphic representation of a population showing the percentages of the total population by age and sex. | |
| 34940765 | Crude birth rate | The number of live births per year per 1,000 people. | |
| 34940766 | Crude death rate | The number of deaths per year per 1,000 people. | |
| 34940767 | Infant mortality | The number of babies that die within the first year of life in a given population. | |
| 34940768 | Total fertility rate | The average number of children born to a woman during her childbearing years. | |
| 34940769 | Demographic transition | change in a population from high birth and death rates to low birth and death rates | |
| 34940770 | Doubling time | The time it takes to double a population. | |
| 34940771 | Exponential growth | geometric growth; doubles each population (2, 4, 8, 16, ...) | |
| 34940772 | Linear growth | Expansion that increases by the same amount during each time interval. | |
| 34940773 | Natural increase | Crude death rate subtracted from crude birthrate | |
| 34940774 | Population explosion | the rapid growth of the world's human population during the past century | |
| 34940775 | Stationary population level | the level at which a national population ceases to grow | |
| 34940776 | Absolute direction | A compass direction such as north or south | |
| 34940777 | Relative direction | Directions such as left, right, forward, backward, up, and down | |
| 36041878 | Absolute distance | The distance that can be measured with a standard unit length, such as a mile or kilometer. | |
| 36041879 | Relative distance | distance measured, not in linear terms such as miles or kilometers, but in terms such as cost and time. | |
| 36041880 | Push factors | Things that make a person want to leave an area | |
| 36041881 | Pull factors | Things that pull or draw a person to move to an area. | |
| 36041882 | Activity space | The space within which daily activity occurs. | |
| 36041883 | Cyclic movement | movement that has a closed route and is repeated annually or seasonally | |
| 36041884 | Nomadism | A way of life in which groups of people continually migrate to find pastures and water. | |
| 36041885 | Seasonal movement | Movements that are taken based on a seasonal basis. | |
| 36041886 | Migration | the movement of persons from one country or locality to another | |
| 36041887 | Emigration | movement of individuals out of a population | |
| 36041888 | Forced migration | The migration event in which individuals are forced to leave a country against their will. | |
| 36041889 | Voluntary migration | Permanent movement undertaken by choice. | |
| 36041890 | Internal migration | Permanent movement within a particular country. | |
| 36043230 | External migration | Migration across an international border. | |
| 36043231 | Interregional migration | Permanent movement from one region of a country to another. | |
| 36043232 | Step migration | migration to a distant destination that occurs in stages | |
| 36043233 | Counter migration | the return of migrants to the regions from which they earlier emigrated | |
| 36043234 | Intervening opportunity | The presence of a nearer opportunity that greatly diminishes the attractiveness of sites farther away. | |
| 36043235 | Distance decay | The diminishing in importance and eventual disappearance of a phenomenon with increasing distance from its origin. | |
| 36043236 | Refugee | person who flees to another country to escape persecution or disaster | |
| 36043237 | Temporary refugees | Refugees encamped in a host country or host region while waiting for resettlement. | |
| 36043238 | Permanent refugees | Refugee that leaves permanently | |
| 36043239 | International refugees | refugees who have crossed 1 or more international boundaries during their dislocation | |
| 36043240 | Intranational refugees | Refugees who have abandoned their town or village but not their country. | |
| 36043241 | Immigration laws | Laws and regulations of a state designed specifically to control immigration into that state. | |
| 36043655 | Eugenic population policy | Government policy designed to favor one racial sector over others | |
| 36043656 | Expansive population policy | Government policy that encourages large families and raises the rate of population density. | |
| 36043657 | Restrictive population policy | Government policy designed to reduce the rate of natural increase. | |
| 36043658 | Negative population growth | When the death rate exceeds the birth rate |
