How did the growth of railroads help businesses and factories?

1. what is significant about the power that russian federal cities are granted? 2. what is significant about official languages in russian republics? why would it matter?

How did the invention of the cotton gin affect slave labor in the united states? a. there was a forced migration of slaves from the south to the north. b. slave-owning cotton planters were gradually forced to sell their plantations. c. more slaves were purchased to work on cotton plantations in the south. d. the reduced need for labor on cotton plantations led to a decline in slavery. e. slaves were moved from cotton plantations to sugar plantations.

Tension between the british. and boers was caused primarily by what things?