Question
Temperature is the main factor behind granular weathering.

Answer

Temperature is the main factor behind granular weathering because-
  1. In hot desert areas, diurnal range of temperature is high.
  2. As the temperature increases with the rising sun, the rock gets heated and cools down with the decrease in temperature.
  3. The minerals in the rock react differently to the temperature increase due to continuous heating and cooling.
  4. Consequently, it leads to development of stress within the rock and molecular or granular disintegration takes place.

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