A world map shows high (dark blue) urban population in America, Australia, parts of the Middle East, Southeast Asia; moderate (blue) in parts of Africa, Asia, and Eastern Europe; low (light blue) in Central/South Asia, and Sub-Saharan Africa.
Class | Rank | Percent | Major Iron-Producing Areas in North America | Oil Shale or Tar Sands | U.S. Presidential Election: Popular Vote by County, 2004 | 0 - 20 | 20 - 40 | 40 - 60 | 60 - 80 | 80 - 100 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.52% | 11.5% | 0.901% | 0.642% | 0.436% | 1.54% | 0.943% | |||||
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