What was the cause of the Russian Revolution that lead to the downfall of the czarist regime in Russia?

***Note***References made to the Russian Revolution refer to the one that lead to the downfall of the czarist regime, and not that of Alexander Krevensky's provisional government. Causes of the Russian Revolution refer to the downfall of Nicholas II's regime. There were three causes that sparked the Russian Revolution, none of which is sufficient on its own to prove the czarist downfall. A weakness in one area led to a problem in another. All …

…expansion, but the Russians wanted their heavy industries to expand. The only solution for this problem was, as the Russians such as Vladimir Lenin saw it, to banish the czars and take matters in their own hands. And that's exactly what they did. Today, Russia is a world power with a strong economy, strong army and a strong leader. If the Revolution hadn't occurred, then Russia probably wouldn't have reached the position it is today.