Question

act of breathing in and out is colled (1) radiation (2) circulation (3) excreation​

Answer 1

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Circulation

Answer 2

Answer:

Respiration a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

so aftr this explaination i am sure tht u hv got ans....

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but this only is the answer