A world map showing male-female ratios. Dark blue to light blue (1 to more than 1): Saudi Arabia, China, Sudan. Orange to red (0.83 to 0.95): Mongolia, Colombia, Ukraine, Russia, U S A, Brazil, and Australia. The region near the South Pole has no data.
Class | Rank | Ratio of males to females | Class | Rank | Percent | Class | Rank | Percent | Class | Rank | Percent of world reserves | Abyssal clay | Calcareous ooze | Continental (lithogenous) | Diatom | Radiolarian | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.4% | 0.428% | 4.26% | 0.351% | 22.4% | |||||||||||||
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