Answer:
1)Russia’s participation in World War I,
2)An unstable government
3)Vladimir Lenin
Step-by-step explanation:
The Russian Revolution had the effect of putting an end to the major arena of fighting on the Eastern Front in World War I. It temporarily helped the Germans by freeing up troops, but this advantage did not do the Germans much good. Therefore, the revolution did not really end up making much of a difference in the outcome of the war.