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Observe the table and answer the following.Gas% in inhaled air% in exhaled airOxygen21.0016CO20.034Nitrogen7878(i)What has raised the % of CO2 in exhaled air ?(ii) In the above table why is there no change in nitrogen percentage ? |
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Answer» (i) The CO2 released from our body during respiration has raised the % of CO2 in exhaled air. (ii)Nitrogen has no role in our respiration. So there is no change in the percentage of nitrogen. |
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