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chapterthree3

models of the earth

QuestionAnswer
latitude distance north or south of the equator
longitude distance east or west from the prime meridian
prime meridian zero degree line of longitude
equator zero degree line of latitude
international date line the 180o line of longitude, opposite the prime meridian, where date changes
parallel another name for latitude lines
meridian another name for longitude lines
minute one sixtieth of a degree of latitude or longitude
second one sixtieth of a minute of latitude or longitude
global positioning system satellite navigation system which uses 24 satellites orbiting Earth to triangulate a position on Earth; GPS
cartography the science of making maps
map projection a flat map that represents a three-dimensional curved surface
legend list of map symbols and their meaning
map scale the relationship between distances shown on a map and actual distance
topography size and shape of the land surface features of a region including relief
elevation height of land above sea level
contour line a line on a topographic map that connects points of equal elevation
index contour every fifth contour line, made bolder, which makes reading elevation easier
depression contour a closed loop contour with perpendicular marks pointing inward; also called hachures; represent decreasing elevation inside the contour
Created by: sisteele
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