| 1. Crystallization is a form of mechanical weathering. |
| 2. Hydration causes granular disintegration. |
| 3. Frost action is synonymous with freeze-thaw action. |
A) 1 and 2 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2 and 3
Correct Answer: D
Solution :
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 which 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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