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 | Class | Rank | Value | Abyssal clay | Calcareous ooze | Continental (lithogenous) | Diatom | Radiolarian | Lowest hazard | Low hazard | Moderately low hazard | Moderate hazard | Moderately high hazard | High hazard | Highest hazard | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
29.4% | 0.428% | 4.26% | 0.351% | 22.4% | 26.4% | 18.4% | 16.6% | 29.2% | 5.20% | 4.36% | 7.41% |
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