Source: Extra Practice

Why does wind generally blow from areas of high pressure to areas of low pressure?

Options

Option A

Because high-pressure areas are always warmer than low-pressure areas, causing air to expand and move.

Option B is correct

To equalize the pressure difference, as air naturally moves from a region of higher concentration to a region of lower concentration.

Option C

Due to the Earth's rotation, which pushes air masses in that specific direction.

Option D

Because low-pressure areas contain more moisture, attracting dry air from high-pressure zones.

Explanation

Wind is essentially moving air. Air always moves from a region of high atmospheric pressure to a region of low atmospheric pressure to equalize the pressure difference, much like water flowing downhill. This movement is driven by the pressure gradient force. While the Earth's rotation (Coriolis effect) deflects winds, it does not cause their initial movement. Temperature and moisture differences can be associated with pressure, but the fundamental cause of wind direction is the pressure gradient.