the use of submarines during world war i resulted in the sinking of passenger liners. a quick end to the…

the use of submarines during world war i resulted in the sinking of passenger liners. a quick end to the war. the poisoning of water supplies. greater support for air attacks.
Answer
Brief Explanations:
During World War I, German U - boats used unrestricted submarine warfare which led to the sinking of passenger liners like the Lusitania. This had significant political and public - opinion impacts. The war did not end quickly due to submarines, submarines were not used to poison water supplies, and there was no direct link between submarine use and greater support for air attacks.
Answer:
the sinking of passenger liners.