Me asap. i will up-vote your answer. i would really appreciate it. how did thomas edison's invention of the light bulb affect industry?
a. electric lights made it possible for factories to run after dark.
b. having better lighting largely eliminated industrial accidents.
c. bulb manufacturing became the biggest industry in the united states.
d. brighter lights made people more productive, so they worked fewer hours.

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.