How do submarines get air under water?

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asked Nov 24, 2018 in Primary & Secondary Education by Hermania (240 points)
How do submarines get air under water?

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answered Nov 25, 2018 by Adf289 (58,200 points)
Submarines get the air needed when underwater by pumping oxygen inside the submarine.

The submarine contains oxygen tanks with enough oxygen in them to last the entire voyage on the submarine.

The oxygen tank system is computerized and the computerized system in the submarine monitors the oxygen levels in the submarine and then releases more oxygen as it's needed to the people in the submarine can breathe.

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