Question

How have archaeological sources helped in the study of Harappan civilisation?

Answer 1

Archaeological sources are the main source of studying the harappan civilization because it provides evidences about the culture, art, architecture of that time.
It becomes the  main sources also because no written evidences were available.

Answer 2

Archaelogical sources are considered as good source of studying the past as they carried a lot of information in them.Archaelogical sources have been the things like jars,ornaments and various other household things.They are helpful in studying the tradition and culture of ancient society.