Question: Modern SCUBA gear was developed by _________ and _________ to help a diver breath better under water at lower?

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Answer #1:

By "modern" the question is probably asking who invented the "on-demand" regulator. That would be Cousteau and Gagnan.

I don't mind helping with general knowledge that is basically trivia, but I hope you are doing your own studying on the physics and physiology if this is for a certification related test.

Answer #2:

is this your homework???





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