Answer:The deflection of the wind from the poles to the equator and vice versa is caused by the Coriolis effect. This effect occurs due to Earth's rotation, which makes moving air appear to curve rather than travel in a straight line.How It Works:1. Earth’s Rotation – The Earth rotates from west to east, which influences the movement of air masses.2. Different Speeds at Different Latitudes – The equator moves faster than the poles. When air moves from the poles to the equator (or vice versa), it retains the speed of its original latitude.3. Deflection Direction:In the Northern Hemisphere, winds deflect to the right.In the Southern Hemisphere, winds deflect to the left.Impact on Global Wind Patterns:Trade Winds (near the equator) blow from the east.Westerlies (mid-latitudes) blow from the west.Polar Easterlies (near the poles) blow from the east.This deflection is what creates major global wind patterns and influences weather systems, ocean currents, and even typhoons.