In the Northern Hemisphere, moving air is deflected to the right; in the Southern Hemisphere to the left.

• A. Left
• B. Right
• C. Upwards
• D. Downwards

Answer: (B)

This question tests the Coriolis effect—the apparent sideways deflection of moving air caused by Earth's rotation. In the Northern Hemisphere, moving air is deflected to the right of its path; in the Southern Hemisphere, it is deflected to the left. This happens because air parcels conserve angular momentum as they move into regions with different rotational speeds, so their motion appears to bend relative to the surface. So, a moving air parcel in the Northern Hemisphere ends up deflected to the right, while in the Southern Hemisphere it deflects to the left. Horizontal deflection, not vertical movement, is what's being described, which is why the correct choice is Right.