Cardiopulmonary resuscitation (CPR)?

keeps the brain alive for 20 minutes

Is the electrical means for
keeping the brain working

allows alr to enter the lungs

preserves brain function

allows air to enter the lungs

Explanation:

Although CPR is also administered in order to preserve brain function, the main purpose and objective of administering CPR is to breathe air into the lungs of the victim in order to save their life.

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explanation: