It was one of the reasons the US joined the war. With that, the Germans and Central Power started to lose (they had no chances after the sinking and the Zimmermann telegram)
Answer: it generated a growing demand for cheap raw materials that were widely available throughout the continent.
Explanation:
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THE ANSWER IS C mostly and if thats incorrect its probably the last one btw i like your username itss cool:)
He added copper rivets at the corners of the pockets to keep the stitches from tearing.