Q: 1 (NDA-I/2014)

Consider the following statements :
1. Crystallization is a form of mechanical weathering.
2. Hydration causes granular, disintegration.
3. Frost action is synonymous with freezethaw action.
Which of the statements given above are correct?
question_subject: 
Science
question_year: 
2014
question_exam: 
NDA-I
stats: 
0,640,1168,552,400,472,384