difference between chronological and geological classification of data 5 points

I think you might be asking about the difference between geographical and chronological classification of data. Geographical and chronological classification of data are already explained in our study material. Follow the given link and scroll down to 'Methods of Classification'.

https://www.meritnation.com/cbse/class11-commerce/studymaterial/economics/statistics-for-economics/organisation-of-data/443_2495_6423#slide1_raw-dataclassification-of-data-meaning-objective-and-methods