A steep-side feature with vertical bands of alternate hard arid soft rocks, aligned in the direction of the prevailing winds is

The correct answer is Yardang. Yardang is a landform created by wind erosion. It consists of a steep-sided and elongated ridge with a sharp crest, formed by the erosion of alternating layers of hard and soft rock, aligned with the prevailing wind direction. The softer rocks are eroded more quickly, leaving behind the harder rocks standing high and forming the crest of the ridge. Therefore, a steep-side feature with vertical bands of alternate hard and soft rocks, aligned in the direction of the prevailing winds is a Yardang.