Breathing is a process that (i) provides O2 to the body. (ii) breaks down food to release energy. (iii) helps the body to get rid of CO2.

Monjur Alahi

Breathing is a process that
(i) provides O2 to the body.
(ii) breaks down food to release energy.
(iii) helps the body to get rid of CO2.
(iv) produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
(a) (i) and (ii)               (b) (ii) and (iii)
(c) (i) and (iii)              (d) (ii) and (iv)


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(i) provides O2 to the body.

(iii) helps the body to get rid of CO2.

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