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GGH2604Study units 5 and 8 Human agency in geomorphology The future: Coastal environments
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Reactivation and stabilization of sand dunes•Wind is a comparatively feeble (weak) geomorphic agent over much ofthe earth's surface, but in areas where vegetation is sparse and surfacesediments dry out, it can occasionally have significant effects.•Where these factors are favorable, Aeolian (wind-formed) landscapesdevelop.•The most striking features of these landscapes are sand dunes.•Sand dunes are accumulations of wind deposited particles and canassume a bewildering variety of forms (Summerfield, 1999).•The mobility of sands carried by wind enable sand dunes to march overgreatdistance,whichcandisrupthumanactivitiesanddestroyagricultural land, settlements and various man-made structures.