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Studies of deep-sea sediment cores have contributed greatly to scientific knowledge of ________. the origin of oscillation ripple marks in deep-sea muds how soft-bodied organisms are carbonized the biological impacts of pollution on parts of the continental shelves climatic changes during the last four million years.

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User Dgorti
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Answer:

climatic changes during the last four million years

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User Rajan Saha Raju
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