Which process is specifically the removal of sand and dust by wind, leaving a surface composed of coarser material?

Which process is specifically the removal of sand and dust by wind, leaving a surface composed of coarser material?

• A. Wind erosion
• B. Deflation (Erosional Process)
• C. Desert pavement
• D. Karst topography

Answer: (B)

Deflation is the wind-driven removal of loose, fine particles such as sand and dust from the surface. As these fine materials are blown away, the surface becomes covered by coarser material, producing a desert pavement-type surface. Wind erosion is a broader term that includes other wind-related processes, but the specific action described—removing the fines and leaving coarser material—is deflation. Desert pavement is the resulting surface, not the process, and karst topography involves dissolution of soluble rocks, not wind removal of fines.

Deflation is the wind-driven removal of loose, fine particles such as sand and dust from the surface. As these fine materials are blown away, the surface becomes covered by coarser material, producing a desert pavement-type surface. Wind erosion is a broader term that includes other wind-related processes, but the specific action described—removing the fines and leaving coarser material—is deflation. Desert pavement is the resulting surface, not the process, and karst topography involves dissolution of soluble rocks, not wind removal of fines.