What are the 6 European languages that are spoken by million of people today?

Which revolution led to the development of these civilizations?

Why do farmers in different regions use different farming techniques

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion