Question

Why does the sudden breaking of rock happen at night in the deserts?

Answer 1

The sudden breaking of rocks at night in deserts happens due to the large temperature fluctuations between day and night. During the day, rocks expand from heat, and at night, they contract rapidly from cooling. This frequent expansion and contraction create stress and tension, causing the rocks to crack and break suddenly. This physical weathering process is called block weathering and granular weathering, common in deserts with high diurnal temperature ranges.