The use of submarines during World War I had which of these effects? It gave an advantage to the coastal nations. It made naval battles the key battles of the war. It made it difficult for merchants to bring supplies to the Allies. It prevented the Central Powers from transporting troops.

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History

Karly Patrick

19 July, 05:06

The use of submarines during World War I had which of these effects? It gave an advantage to the coastal nations. It made naval battles the key battles of the war. It made it difficult for merchants to bring supplies to the Allies. It prevented the Central Powers from transporting troops.

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Erika Sanders · Answer 1

"It made it difficult for merchants to bring supplies to the Allies" is the best answer because submarine warfare during this time was "unrestricted" meaning that civilian vessels could be sunk.