This is a terminology-matching question pairing arid/desert geomorphic processes (A-E) with their corresponding characteristic landforms or products (O-S): evaporation of water leaves evaporite minerals concentrated in playas; deflation (wind removal of fine material) creates desert pavement (lag concentration of coarser particles); sandblasting (wind abrasion) produces ventifacts (wind-faceted/polished rocks); weathering processes (including chemical/biological) contribute to desert varnish (a dark mineral coating on rock surfaces); and wind erosion carving streamlined, elongated ridges produces yardangs.