Question

explain any 3 reasons which led to civil war between bolsheviks and non bolsheviks

Answer 1

The first reason was that the Bolsheviks had many enemies:  

the Social Revolutionaries (angry because Lenin had closed the Assembly);  

supporters of the Provisional Government;

supporters of the Tsar;

army officers (angry that had Lenin had made peace with Germany);

nobles whose land had been given to the peasants.  

These groups co-operated to try to bring down the Bolshevik government.

A second cause was the Czech Legion – Czech prisoners of war who mutinied, took control of the Siberian Railway, and attacked towards Moscow.

Finally, Britain, America and France, angry that Russia had dropped out of the First World War, attacked the Bolsheviks.   They were afraid because the Bolsheviks wanted to cause communist revolutions all over the world.  

Answer 2

The principal causes for that civil war were as follows.

At that point, Bolsheviks had several competitors like the sponsors of Tsar and the ephemeral authority, Rovultionaries, etc they all despised them because of the actions that they have exercised.

And hence all the specific groups associated and contribute to overthrow the Bolsheviks judgment.

Czech war captives not only denounced Moscow but also grabbed the authorities of the Siberian railroad.

These troops or non-Bolsheviks and Bolsheviks encountered a civil war; and loot, banditry, and starvation became prevalent.