Well, when wind is blowing, it carries small sediments, like sands. Sands will flow in the direction of the wind. Then the sands will bump into a solid rock continuously and will create frictions thus eroding it. Hope this helped!
As wind blows over the ground it picks up small particles of sediment in the process of deflation. The stronger the wind, the larger the particles it erodes. Wind causes erosion through ablation and abrasion. Abrasion can polish rock surfaces
