1.

Give geographical reasons:Mechanical weathering3 takes place in the cold regions.

Answer»
  • In the cold regions, the temperature drops below 0°C for a period of time. 
  • The water that has percolated through the cracks in the rocks freezes and turns into ice. 
  • Ice requires greater space than water. Tension is developed when the ice tries to acquire greater space. 
  • The continuous process of freezing and melting finally leads to the breaking of the rock mass.


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