Well the cause of a certain event in history will mean something happens.
The effect is the result of the event happening
For example. With 9/11 the cause was the twin towers collapsing. The effect would have been thousands of people dying as the result of the planes being highjacked
Economic activities nations also have similar
I think it’s a Democratic republic
The question ask to state what the suspect do at show trials during the great purge, and base on my research and further investigation, I would say that they often admitted to fault even when they were completely innocent, in the hopes of receiving a reduced sentence or avoiding the labor camps in the East. I hope this would help