a tale of two oceans tells of the big difference between the pliocene and pleistocene. what were some of the global changes? (select all that apply) a) a change from a strong thermocline....... to one that promotes more upwelling b) .......significant changes in surface and deep ocean currents c) a change from no ice caps......... to the development of extensive ice caps d) a change from a more permanent el nino......... to a more la nina like normal e) a change from a time of enhanced productivity........ to a time of low productivity

Significant changes in surface and deep ocean currents (b).
A change from a more permanent el Nino......... to a more la Nina like normal (d).
A change from a time of enhanced productivity........ to a time of low productivity (e).

Understanding the Tale of Two Oceans

A tale of two oceans is the short title of a scientific publication written by Jose Abel Flores and Gabriel M. Filippelli. The full title of this geological research is "From the Warm Pliocene to the Cold Pleistocene: A Tale of Two Oceans". In general, this study states the Pliocene and Pleistocene oceans are completely different in terms of biological productivity, circulation, also the state of upwelling.

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