JAMB Biology 2023 Objective — Question 30
Question 30 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2023 Objective paper, with the correct answer and a full explanation.
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Exhaled air differs from inhaled air in that it is
- A. usually has more water vapourCorrect
- B. is usually lower in temperature
- C. has less amount of carbon dioxide
- D. often has more oxygen
Explanation
Exhaled air usually has more water vapour and is usually higher (not lower) in temperature than inhaled air; it also has greater CO2 and less oxygen than inhaled air.
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