| 1. | There is also a wide variety of fish in the polar regions.
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| 2. | Later Piggott concentrated his interest on the ionosphere in the Polar regions.
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| 3. | The main type of soil in the polar regions is ahumic soil.
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| 4. | In polar regions diamond dust may continue for several days without interruption.
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| 5. | Polar regions are visited more frequently due to the convergence of orbits.
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| 6. | This means we get more snow and ice near the polar regions.
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| 7. | Photographs of Chinese expeditions to the Polar Regions are exhibited as well.
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| 8. | Petermann still believed, however, that Greenland stretched far into the Polar region.
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| 9. | They have a worldwide distribution except for Australia and the polar regions.
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| 10. | Some polar regions, including the interior of Antarctica, have actually grown colder.
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