\( \mathrm{KO}_{2} \) is used in space and submarines because it (1...

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\( \mathrm{KO}_{2} \) is used in space and submarines because it
(1) Absorbs \( \mathrm{CO}_{2} \) and increase \( \mathrm{O}_{2} \) concentration
(2) Absorbs moisture
(3) Absorbs \( \mathrm{CO}_{2} \)
(4) Produces ozone
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