5) what happened in november 1917 when the government of the russian empire under czar nicholas was taken over by the bolsheviks?

the soviet union signed a treaty with germany to support the central powers and fight against the allies for the remainder of the war.

the soviet union signed an armistice with germany and withdrew russian forces from the war.

the soviet union attacked the ottoman empire and annexed much of its territory.

the soviet union joined the allies and fought against the central powers for the remainder of the war.

5. On November 6 and 7, 1917 (or October 24 and 25 on the Julian calendar, which is why the event is often referred to as the October Revolution), leftist revolutionaries led by Bolshevik Party leader Vladimir Lenin launched a nearly bloodless coup d'état against the Duma's provisional government.

Explanation:

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.

honestly you should get that checked out because it really isn't normal