In winter, although many parts of Europe have heavy snow falls, the sea ports remain ice-free and ships come and go. What could be a reason why the sea ports remain ice-free?

A) A warm ocean current flows along the coast
B) A cold ocean current flows along the coast
C) The coastal regions have very moderate winters
D) Warm winds blow from the continent, melting the ice

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.