Although eastern europe has struggled after the collapse of the soviet union.", have positively affected the environment.
a. less smoking
b. political changes
c. factory closures
d. land use changes

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