Answer:
By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places
Explanation:
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Slabs of ocean floor return to the mantle in subduction zones.Description<span>
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C) mountains
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C, take hundreds of millions of years to form!