Term | Definition |
1 Geography | The study of the earth's surface and the processes that shape it,the connections between places,and the complex relationships between people and their environment. |
2 GIS | A geographic information system,which uses computer technology to collect and analyze data about the earth's surface in order to solve geographic problems. |
3 Absolute Location | The position on the earth in which a place can be found. |
4 Hemisphere | A half of the earth;the Equator divides the Northern and Southern hemispheres;the Prime Meridian divides the Eastern and Western Hemispheres. |
5 Relative Location | The position of a place in relation to another place. |
6 Character of a place | The physical and human characteristics that help to distinguish a place from other places. |
7 Perception | A viewpoint that is influenced by one's own culture and experiences. |
8 Formal region | A group of places that have similar attributes. |
9 Functional region | A group of places connected by movement. |
10 Perceptual region | A group of places that is defined by people's feelings and attitudes. |
11. Core | The earth's center,consisting of very hot metal that is dense and solid in the inner core and molten,or liquid ,in the outer core. |
12.Mantle | A thick layer of mostly solid rock beneath the earth's crust that surrounds the earth's core. |
13.Crust | The solid,rocky,surface layer of the earth. |
14. Lithosphere | The surface features of the earth,including soil,rocks,and land forms. |
15. Atmosphere | The layer of gases,water vapor,and other substances above the earth. |
16.Hydrosphere | The water contained in oceans,lakes,rivers,and under the ground. |
17. Biosphere | The world of plants,animals,and other living things in earth's land and waters. |
18. Continet | Any of the seven large landmasses of the earth's surface. |
19.relief | The differences in elevation,of height,of the land forms in any particular area. |
20,plate tectonics | The theory that the earth's outer shell is composed of a number of large,unanchored plates,or slabs of rock,whose constant movement explains earthquakes and volcanic activity. |
21. Continental drift theory | The idea that continents slowly shift their positions due to movement of the tectonic plates on which they ride. |
22. Ring of Fire | A ring of volcanic mountains surrounding the Pacific Ocean. |
23. Weathering | The chemical or mechanical process by which rock is gradually broken down,eventually becoming soil. |
24. Mechanical Weathering | The actual breaking up or physical weakening of rock by forces such as ice and roots. |
25.Chemical Weathering | The process by which the actual Chemical structure of rock is Changed,usually when water and carbon dioxide cause a breakdown of the rock. |
26.Acid Rain | Rain whose high concentration of chemicals,usually from industrial pollution,pollutes water,kills plant and animal life,and eats away at the surface of stone and rock;a form of chemical weathering. |
27. Erosion | The movement of weathered materials,including gravel,soil,and sand, usually caused by water,wind,and glaciers. |
28.Sediment | Particles of soil,rock carried and deposited by water,wind,or ice. |
29.Loses | Fine-grained,mineral-rich loam,dust,or silt deposited by wind. |
30.Glacier | A huge, slow-moving mass of snow and ice. |
31.Moraine | A ridge-like mass of rock,gravel,sand,and clay carried and deposited by a glacier. |