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Review: Ice Cores IV
Explanation
In this question, we are asked about ice cores extracted
at low latitudes--that is, away from the poles. This subject came up in the
context of the advantages of the ice core method, so we should expect a correct
answer here that has a positive slant on the method. That point discredits (B)
and (D). (A) and (C) are plausible, but unsupported.
Choice (E) is the whole point of the passage.
The correct answer is (E).
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