A . usually lived and worked in cities and town
Answer:
The shape that could be used to describe the structure of social classes in early civilizations is the pyramid. In the absence of social classes the whole system will break down, and the social classes provide basis for a successful civilization.
The uppermost class was of the Brahmins, followed by Kshatriyas, Vaishyas, Shudras, Untouchables and last came the Adivasis.
Hope this helps:)
It was the Hydaspes River
