Any historians trying to confirm if i'm right or wrong on anything?

Why did river valleys most farming impact the lives of neolithic peoples?

Which is one factor that contributed to the rise of sikhism? a. the spread of christianity into india b. opposition to the hindu caste system c. objections to the five pillars of islam d. a return to polytheistic religion

Classify the most significant contributions of the two major indian empires to world culture