1.

The table below shows the differences between inhaled air and exhaled air:Answer the following questions with respect to exhaled air: Why has its oxygen content decreased? Why is there no change in the percentage of nitrogen?

Answer» The table below shows the differences between inhaled air and exhaled air:





Answer the following questions with respect to exhaled air:

  1. Why has its oxygen content decreased?

  2. Why is there no change in the percentage of nitrogen?





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