Concept:Wind erosion is strongest where the land is bare and the wind blows without obstruction.
Explanation:Arid areas receive very little rainfall, which means vegetation is sparse or absent.
Without enough plants, tree roots, or other natural wind breaks, there is nothing to shield loose soil and sand from the wind.
High wind speeds in deserts can then move loose particles easily, cutting and wearing away the land surface.
Thus, the combination of strong winds and few barriers is the main reason why wind erosion is common in arid areas.
Answer:B. Wind speed is high and there are few wind breaks