What is geography? A. The art of making maps.

B. The study of the past.

C. The study of how dinosaurs.

D. The study of the earth's surface.

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