After railroads, the next revolution of transportation came with the development of the
automobile
steam engine
telegraph

How can studying economics us make better choices about how to use scare resources

Which two following best identify the central themes of this speech in the passage the man in the arena

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