I'm not completely sure what you mean my contrasts and contradictions but I'll try to help
When Jonas realized he could see color, it contrasted from the normal grey scale he and his community usually experience.
His new life contradicted his past life before his job assignment because he was told he could never lie but not with his job, he has the right to.
He also realized what the government was doing immorally and that contradicted his old view of his government, which was that they are faultless.
Sorry that's only three but I hope it helped
This is very complicated Don't know but I hope you find out
Answer:
Most revolutions start because a certain group finds something unjust. For example, the French revolution basically started because the French people believed their government to be unjust. So, for a revolution to be a success would be for that particular group to change what they saw as wrong.
Hope this helps :)
