How did world war 1 affect the russian revolution of 1917

The effects of World War I gave rise to the Russian Revolution. In February and March 1917, a popular revolution forced the abdication of Tsar Nicholas II and the rise of a provisional government. This government, which kept Russia in the war, was itself overthrown by radical socialists just eight months later.

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2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.