How was the February Revolution able to bring down the monarchy in Russia?

How was the February Revolution able to bring down the monarchy in Russia?
Answer:
On Sunday the 25 February, the government suspended the Duma. Demonstrations returned back on the streets of the left bank. People raised slogans about bread, wages, better hours and democracy. The government tried to control the situation by calling the army but the cavalry refused to fire at the demonstrators. Now soldiers also joined workers and had all gathered to form a Council called the ‘Soviet’. This was the Petrograd Soviet.
The very next day, a delegation went to see the Tsar and advised him to accept defeat. He decided to abdicate on 2 March and the Soviet leaders and the Duma leaders formed a Provisional Government. New Russia’s future would be decided by the Constituent Assembly, elected on the basis of universal adult franchise. Petrograd had led the February Revolution that brought down the monarchy in February 1917.