What is one way that the trade agreement made goods less expensive to import and export?

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

How did the byzantine culture influence russia?

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