2. Projections and Thematic Maps
GED® Social Studies: Maps, Regions & Physical Geography · preview lesson
A globe is round, but a map is flat, so every projection distorts something: size, shape, distance, or direction. Thematic maps show one topic, such as population density, rainfall, resources, or language. GED® questions usually ask what pattern the map supports.
References: USGS: The National Map; U.S. Census Bureau: Population and Housing Data
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