Unlike historical evidence of weather patterns in other regions of the world, which scientists find abundantly represented in tree rings, ancient glacial ice, or layers of sediment from seasonal plankton, the North Pole's clues about its past climates are almost nonexistent.
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A the North Pole's clues about its past climates are almost nonexistent
分析该选项
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Bthe North Pole does not offer many clues as to its past climates
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Cclues to the past climates of the North Pole are almost nonexistent
分析该选项
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Dthere are few clues about past climates for the North Pole
分析该选项
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Ethe past climates of the North Pole do not offer many clues
分析该选项
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正确答案: C