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from | Encarta |  |
Antarctic Iceberg |
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| Icebergs are free-floating chunks of glaciers, particularly common in the polar regions. Although they are often spectacular, these ice formations pose a twofold problem for navigators: Icebergs may be 90 percent bigger than they appear from the surface, and it is impossible to map their presence because they are constantly moving. | ||||||
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| Robert Hernandez/Photo Researchers, Inc. | ||||||
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| Appears in these articles: | ||||||
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| Iceberg; Ice | ||||||
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