Hi Preetam

B.Sc hons. geology is better than B.Sc. Statistics because in geology there are many interesting fields and all are based on the true knowledge. Both are the different subjects and also both have their own values.

If you have interest in work like finding the things like rock and search on them or finding how old this thing is ? All are in geology ... if you want to do calculation and all like measurement then statistics is good.

Take a good decision !