please answer this question

Dear Student,

 The query seems to be incomplete, however, you may refer the following points to fill in the blanks for Gangetic plains :

a. Main occupation was cultivation of crops, farming. Wheat and rice is grow. People also reared cattle and domesticated animals.

b. Sabha, Samiti, Gana and Vidhata( Early vedic period in the region)

c. Society was stratified

d. Tribal kingdoms which included warriors, priests and common people. Later the region had  many dynasties which included Magadha, Mughals etc

e. Religious beliefs and practises

f. Tribal kingdoms and later many dynasties ruled the region

Regards