The correct option is To the right in the northern hemisphere and to the left in the southern hemisphere..
Explanation
The Coriolis force is an apparent force caused by the rotation of the Earth on its axis. It plays a critical role in determining the direction of moving fluids, such as ocean currents and winds, on the planetary surface.
Analysis of Deflection:
- Earth's Rotation: The Earth rotates from west to east. This rotation creates a deflective force known as the Coriolis force.
- Directional Rule (Ferrel’s Law): The Coriolis force deflects moving objects (including water masses) to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
- Impact on Ocean Currents: As ocean water moves under the influence of wind or density differences, the Coriolis force modifies its path. Instead of flowing in a straight line, currents curve according to the hemisphere they are in.
- Magnitude: The effect of the Coriolis force is zero at the equator and increases towards the poles.
Key Takeaway:
Due to Earth's rotation, the Coriolis force causes moving ocean water to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.