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The exhaled air contains
- a)carbon dioxide only
- b)a mixture which has more carbon dioxide than oxygen
- c)a mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
- d)a mixture of carbon dioxide and nitrogen
Correct answer is option 'C'. Can you explain this answer?
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Exhaled air and its contents
Introduction: Exhaled air refers to the air that is breathed out by a person. It contains several gases, including carbon dioxide, oxygen, nitrogen, and other trace gases.
Composition of exhaled air: The composition of exhaled air can vary depending on several factors such as the health of the person, the altitude, and the amount of physical activity. However, in general, exhaled air contains:
- Carbon dioxide (CO2): This gas is the most abundant in exhaled air, constituting approximately 4% of the total volume. It is a waste product of cellular respiration and is excreted from the body through the lungs.
- Nitrogen (N2): This gas makes up approximately 78% of the air we breathe and is also present in exhaled air. Its concentration is lower in exhaled air, at around 78-79%.
- Oxygen (O2): This gas is essential for life and is necessary for cellular respiration. It makes up around 16% of the air we breathe but is present in lower concentrations in exhaled air, at around 15-16%.
- Other trace gases: Exhaled air also contains small amounts of other trace gases, such as water vapor, argon, neon, helium, and methane.
The percentage of gases in exhaled air: The percentage of gases in exhaled air can vary depending on several factors. However, in general, the percentage of gases in exhaled air is:
- Carbon dioxide: 4-5%
- Nitrogen: 78-79%
- Oxygen: 15-16%
- Other trace gases: < />
Conclusion: In conclusion, exhaled air contains a mixture of gases, including carbon dioxide, nitrogen, oxygen, and other trace gases. The percentage of each gas can vary depending on several factors such as the health of the person, the altitude, and the amount of physical activity. However, in general, exhaled air contains a higher percentage of carbon dioxide than oxygen and nitrogen.
Introduction: Exhaled air refers to the air that is breathed out by a person. It contains several gases, including carbon dioxide, oxygen, nitrogen, and other trace gases.
Composition of exhaled air: The composition of exhaled air can vary depending on several factors such as the health of the person, the altitude, and the amount of physical activity. However, in general, exhaled air contains:
- Carbon dioxide (CO2): This gas is the most abundant in exhaled air, constituting approximately 4% of the total volume. It is a waste product of cellular respiration and is excreted from the body through the lungs.
- Nitrogen (N2): This gas makes up approximately 78% of the air we breathe and is also present in exhaled air. Its concentration is lower in exhaled air, at around 78-79%.
- Oxygen (O2): This gas is essential for life and is necessary for cellular respiration. It makes up around 16% of the air we breathe but is present in lower concentrations in exhaled air, at around 15-16%.
- Other trace gases: Exhaled air also contains small amounts of other trace gases, such as water vapor, argon, neon, helium, and methane.
The percentage of gases in exhaled air: The percentage of gases in exhaled air can vary depending on several factors. However, in general, the percentage of gases in exhaled air is:
- Carbon dioxide: 4-5%
- Nitrogen: 78-79%
- Oxygen: 15-16%
- Other trace gases: < />
Conclusion: In conclusion, exhaled air contains a mixture of gases, including carbon dioxide, nitrogen, oxygen, and other trace gases. The percentage of each gas can vary depending on several factors such as the health of the person, the altitude, and the amount of physical activity. However, in general, exhaled air contains a higher percentage of carbon dioxide than oxygen and nitrogen.
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The exhaled air containsa)carbon dioxide onlyb)a mixture which has more carbon dioxide than oxygenc)a mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentaged)a mixture of carbon dioxide and nitrogenCorrect answer is option 'C'. Can you explain this answer?
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