Which of the following WAS NOT an effect of the Bolsheviks Revolution? a. Bolsheviks sign peace treaty with Germany
b. Russia stays in WW1
c. Civil War begins in Russia
d. Establishment of a Communist state

B. Russia stays in WW1.

Explanation:

The Bolshevik regime was the consequence of a coup d'etat of the Bolsheviks, a far left group from Russian Social Democrat Workers' Party, that defended land collectivization and cease war hostilities, against the Russia Provisional Government, a liberal-socialist coalition led by Aleksandr Kerensky, in October/November 1917. In consequence, a Communist regime of Marxist-Leninist orientation was established then and later became a Communist state with the rise of Union of Soviet Socialist Republics in 1922, after five years of a bloody civil war held against Whites (Tsarists, Conservative, some Liberals), Greens (Russian peasants with anarchosocialist tendencies), Blacks (Ukranian anarchists) and Nationalists (i.e. Armenians, Moldovans).  

The Bolshivik regime signs the Brest-Litovsk Treaty with the German Empire and the Austro-Hungarian Empire on March 3, 1918, which Russia ceded territories in Ukraine, Poland, Lithuania, Estonia, Latvia, Besarabia and Poland and Russia stopped fighting in World War I.

Hence, the option B is NOT an effect of the Bolsheviks Revolution.

they gained popular support by speaking out against communists

in the united states. ( d.)

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.