The primary purpose served by surface ocean currents is to: a. drive atmospheric wind patterns. b. dissipate excess energy received at the poles during their periods of 24-hour daylight. c. equalize climate impacts felt on opposite sides of the same continent. d. transfer heat and equalize the imbalance of energy between the poles and the equator.

D. transfer heat and equalize the imbalance of energy between the poles and the equator

Explanation:

The ocean currents have huge role in the global climate. They manage to transport the heat around the globe, especially between the different latitudes, which is balancing the differences between them. While there are significant differences between the higher and lower latitudes, if it wasn't for the ocean currents, they would have been much bigger. The heat from the lower latitudes is taken toward the higher latitudes, while the coldness of the higher latitudes is taken toward the lower latitudes, balancing the climate to a certain point.

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