When did the end of the berlin airlift occur?

In ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

Which government entity is given the task of initiating articles of impeachment against the president when the need arises