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4 votes
7. Which of the following did NOT contribute to

the Civil War being the 1st modern war?
a. telephone
b. Observation balloons
5. Iron-clad ships
H. submarines

User Densom
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8.2k points

2 Answers

4 votes
Submarine is the correct answer
User Aamish Baloch
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8.1k points
7 votes
The answer to the question is submarines
User Oma
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8.5k points
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