maps are also distinct for the global knowledge required to construct them. A meaningful map of the world could not be constructed before the European Renaissance because less than half of the earth's coastlines, let alone its interior regions, were known to any culture. New knowledge of the earth's surface has been accumulating ever since and continues to this day. Maps of the world generally focus either on political features or on physical features. Political maps emphasize territorial boundaries and human settlement. Physical maps show geographic features such as mountains, soil type or land use. Geological maps show not only the surface, but characteristics of the underlying rock, fault lines, and subsurface structures. Choropleth maps use color hue and intensity to contrast differences between regions, such as demographic or economic statistics.

Wednesday, October 14, 2015

Yemen

6:19 PM    

Yemen - Wikipedia, the free encyclopedia
Yemen - Wikipedia, the free encyclopedia

Yemen profile - Overview - BBC News
Yemen profile - Overview - BBC News

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Yemen | Let's Travel Somewhere
Yemen | Let's Travel Somewhere

Yemeni Revolution - Wikipedia, the free encyclopedia
Yemeni Revolution - Wikipedia, the free encyclopedia

Yemen on the Brink on AM 1370 | WXXI
Yemen on the Brink on AM 1370 | WXXI