| A | B |
|---|
| Moraine | Mass of rock, gravel, sand, and clay; deposited by glacier |
| atmosphere | band of gases, water vapor, and dust above earth |
| climate | weather pattern in an area experience for a long period of time |
| weather | condition of the earth's atmosphere over a short time |
| rotation | spinning of the earth |
| revolution | one orbit around the sun |
| solstice | either the two times when the sun is over the moon |
| equinox | either times of the year |
| precipitation | water that fall to earth from the atmosphere |
| front | boundary between two masses of air |
| continental climate | found in areas of continents in northern hemisphere |
| plant community | mix of plants that grows in one place |
| environment | the conditions of the natural surroundings |
| natural vegetation | plant life in areas where humans don't landscape |
| deciduous | trees that shed leaves when winter approaches |
| coniferous | cone bearing; survive long cold winters |
| chapparral | natural vegetation adapted to mediterranean climates |
| savanna | tropical grass and scattered trees |
| tundra | temperatures are cool or cold |
| perma frost | soil below the earth's surface and frozen |
| demography | study of human populations |
| culture | way of life of people |
| population density | number of people in an area |
| birth rate | births per thousand each year |
| death rate | deaths per thousand |
| immigrant | person moving into a country |
| emmigrant | person leaves a country to live else where |
| urbanization | growth of city population |
| rural | countryside |
| diffusion | spreading traits from one to another |
| acculturation | borrowing and exchanging traits between culture |
| cultural hearths | place where ideas begin and spread to surrounding cultures |
