Question

4. The type of weathering which is predominant in the
hot desert​

Answer 1

The desert surface is dominated by mechanical weathering processes. Rock fragments tend to be angular, rather than rounded.

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Answer 2

Answer:

The arid or hot desert areas dominated by mechanical weathering. Due to the high diurnal range of temperature in the arid areas, repeated expansion and contraction of the outer layer of the rock takes place. The rocks then disintegrate along these joints and big blocks of rocks are dislodged from the main rock mass and fall down the slope under the impact of gravity .