Which inventor created the traffic signal?

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

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.

Who did president kennedy choose to be the director of the peace corps? a. his brother ted kennedy b. his sister jean kennedy c. his brother-in-law sargent shriver d. his sister-in-law joan kennedy