Ocean currents are caused by
and the amount of salt in the water.

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What causes currents in the ocean?

Ocean currents are driven by wind, water density differences, and tides. Oceanic currents describe the movement of water from one location to another.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.

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