Why did the powhatan kill hundreds of jamestown settlers?

Why was control of the atlantic ocean essential to great britain’s success in world war 2

Why did the collapse of the soviet union and the power vacuum in the balkans lead to bosnian genocide?

The factory system of the early-19th century caused a) a decrease in farm production. b) an increase in rural population. c) an increase in urban population. d) high unemployment in other areas.