1- What book did Upton Sinclair write and what did the book reveal? (please answer if you can)

Upton Sinclair wrote the novel, The Jungle, hoping to turn the country toward socialism believing that capitalism was the root of all evil and corruption.

Hope that helped!

The Allied Powers became concerned at the collapse of the Eastern Front and the loss of their Tsarist ally to communism, and there was also the question of the large quantities of supplies and equipment in Russian ports, which the Allied Powers feared might be seized by the Germans.

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