Question : Which of the following is not a primary force which influences ocean currents?
Option 1: Gravity
Option 2: Heating by the sun
Option 3: Magnetic fields of the earth
Option 4: Coriolis force
Correct Answer: Magnetic fields of the earth
Solution : The correct answer is the magnetic fields of the earth
Ocean currents can be caused by the Coriolis force, density differences in water caused by temperature and salinity variations, gravity, and heating by solar energy & wind, but the magnetic fields of the earth do not act as a primary force which influences the ocean currents.
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