What type of weathering is dominant in deserts and why? What about other types of weathering?

Question

Quizplus · Accepted Answer

The Answer is Mechanical weathering is dominant because temperatures can fluctuate a great deal in a day and frost wedging is common in winter. Plant roots and salt crystal growth may also break down some rocks. Chemical weathering is almost slow to non-existent as the land is very arid because of scarcity of moisture and fewer plants mean fewer organic acids.

What Type of Weathering Is Dominant in Deserts and Why