Answer:
Trotsky helped organize the failed Russian Revolution of 1905, after which he was again arrested and exiled to Siberia. As chairman of the Petrograd Soviet, he played a key role in the October Revolution of November 1917 which overthrew the new Provisional Government.
Explanation:
Building through the Sierra Nevada Mountains was very difficult and dangerous. Temperatures were freezing during the winter and in one year alone there were 44 storms.There was the great danger of an avalanche for the men working through 18 feet of snow and camping on the tunnels beneath it. Creating tunnels through the mountains required blasting with nitroglycerin. Advancing at one foot of mountain at a time, a total of 11 tunnels was created.
They became settlers
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Shows how much a company's assets that are financed through debt