Discussion
From the following select the condition which does not favour wind erosion.
Answer: D
The condition that does not favour wind erosion is Presence of moisture in the soil.
Moist soil particles cling together through the cohesion of water films, so wind cannot easily detach and lift them. Wind erosion therefore occurs mainly when the soil surface is dry, loose and finely divided.
The other three all favour wind erosion: a dry period leaves the surface dry and loose; broad, flat or gently undulating land lets wind blow unchecked over long distances; and bare ground without plant cover or residue gives the wind direct access to the soil.
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