Explain one specific piece of evidence that proves that the Europeans satisfied the first of the five developments that the author claims was necessary for Europeans to "cross the seams of Pangaea (the oceans)

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What was one important characteristic of the russian military during world war i? a. it had more advanced military technology than its western european allies. b. it was an all-volunteer military that enjoyed high morale throughout the war. c. it defended russian territory but refused to attack german positions d. it was unable to provide its forces with adequate weapons and supplies.