Rates of physical weathering in deserts are high, even though there isn't a great deal of precipitation, because it is usually heavy when rain does fall.

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In deserts, physical weathering occurs at high rates due to various processes such as temperature changes, salt wedging, and abrasion by wind-blown rocks and sand. Additionally, even though precipitation is limited in deserts, when it does occur, it is often in the form of heavy downpours that can cause rapid erosion and contribute to physical weathering.

Rates of Physical Weathering in Deserts Are High, Even Though