| Greenwich Mean Time | the timezome encompassing the prime meridian |
| Gross Domestic Product | the value of the total output of goods and services produced in a contry in any given period |
| Guest Workers | workers who migrate to a more developed country in search of highers paying jobs |
| Habit | a repetitive act performed by an indaviual |
| hearth | the region where innovative ideas originate |
| hierarchical diffusion | the spread of a feature or trend from one key person or node of authority to other persons or places |
| hierarchical religion | a religion in which a central authority exercises a high degree of control |
| horticulture | the growing of fruits, veggies, and flowers |
| hull | the outer covering of a seed |
| hydroelectric power | power generated from running water |
| ideograms | a system of writting that uses symbols to represent ideas or concepts |
| immigration | migration to a new location |
| imperialism | control of a territory already occupied by an indigenous society |
| industrial revolution | a series of improvments in industry technology that transformed the process of manufacturing goods |
| infant mortality rate | the number of deaths in a year of infants under 1 for every 1000 born |
| intensive subsistance agriculture | a form of subsistance agriculture that requires larg amounts of labor to make the largest crop possible on small plots of land |
| internal migration | permanent movment within a particular country |
| international date line | an arc that follows the 180 longitude and moves the clock 1 day head when traveling west and one day back when traveling east |
| isogloss | a boundary that separates regions in which different language usage is predominate |
| isolated language | a language that is unrelated to any other languages and not attached to any language family |
| labor-intensive industry | an industry in which labor cost comprises a high percentage of total expenses |
| landlocked state | a state that does not have a direct outlet to the sea |
| language | a system of comunication though speech that is understood by a group of people |
| language branch | a collection of languages related through the use a common ancestor. more distinct then a family but less similar then a group |
| language group | a collection of languages within a branch that share a common origin that is relatively recent with few differances in grammar |
| latitude | a numbering system used to indicate location of parallels down a globe and meassuring distance north and south of the equator |
| less developed county | a country that is at a relatively early stage in the process of its economic development |
| life expectancy | the average number of years one can expect to live within a particular country |
| lingua franca | a language mutualy understood by speakers of two differance native laguages used to conduct trade |
| literacy rate | the percent of people in a particular country that can read and write |
| literary tradition | the written language |
| location | the position on earths surface |
| longitude | a numbering system used to indicate location and meassureing distance running west and east of the prime meridian |
| map | a two-dimensional representaion of earths surafce or portion of it |
| interregional migration | movment within a region of a country |
| intervening obstacle | an enviormental or cultural feature that hinders migration |
| international migration | movment from one country to another |