MCQ
The process of respiration is concerned with
- AIntake of ${O_2}$
- BLiberation of ${O_2}$
- CLiberation of $C{O_2}$
- ✓Liberation of energy
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$A.$ Barrier methods of contraception
$B.$ Cover the cervix during coitus
$C.$ Protect the user from contracting $STDs$
$D.$ They are reusable