Question

Which of the following factors do not cause ocean currents? 

1) Prevailing winds

2) Rotation of the earth

3) Revolution of the earth

4) Temperature differences

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Answer 1

Explanation:

Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms.

Answer 2

Answer:

3) Revolution of the earth does not cause ocean currents.

Explanation:

• The movement of ocean water due to various factors like the rotation of the earth, gravity, the density of water, wind, and the sun is called ocean current.
• The winds cause ocean currents in the coastal regions on a localized scale. It is called coastal upwelling.
• They also cause ocean currents on a larger, global scale that cause circulation in water across thousands of miles in oceans.
• The rotation of the earth produces the Coriolis effect that causes ocean currents.
• The differences in temperature affect the density of water, hence, causing ocean currents.
• The revolution of the earth does not affect the ocean current.