Question

russian revolution
which led to the 1905 revolution?
the events in st.
petersburg
the strike by millions of
workers
the establishment of the
duma
the indifference of the tsar

Explanation:

The 1905 Russian Revolution was sparked by the events in St. Petersburg (Bloody Sunday), where workers' peaceful protest was violently suppressed. This event triggered widespread unrest. The strike by millions of workers was a result, the Duma was established after the revolution, and the tsar's indifference was part of the broader context but not the direct trigger.

Answer:

the events in St. Petersburg