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प्रश्न
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
पर्याय
(i) and (ii)
(ii) and (iii)
(i) and (iii)
(ii) and (iv)
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उत्तर
(i) and (iii)
Explanation:
Breathing means taking in air rich in oxygen and giving out air rich in carbon dioxide with the help of respiratory organs. The taking in of oxygen-rich air into the body is called inhalation and giving out of carbon dioxide-rich air is known as exhalation.
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