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Question
Consider the following statements:

  1. Crystallization is a form of mechanical weathering.

  2. Hydration causes granular disintegration.

  3. Frost action is synonymous with freeze-thaw action.


Which of the statements given above are correct?
Options:
A .  2 and 3 only
B .  1 and 3 only
C .  1, 2 and 3
D .  1 and 2 only
Answer: Option C
Answer: (c)
Crystallisation is a form of mechanical weathering. It is operative, especially in arid climates. Due to dry weather, moisture is drawn to the surface of rocks.
Hydration is another process that involves water, but there is no chemical change whatsoever. Hydration causes granular disintegration.
Frost action is also termed as synonymous with freeze-thaw action.

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