Question

observe the following table and answer the question ​

Answer 1

Answer:

a) because some amount of inhaled oxygen will be absorbed in alveoli and diffused into blood capillaries

b) because nitrogen gas is not utilised by our body

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Answer 2

Answer:

$\huge\mathfrak\pink{hola dear}$

A - Oxygen is inhaled by our body with help of lungs through alveoli which determine less amount of oxygen in exhaled .

B - Nitrogen have no change because in our body no use of N in anywhere .

(N) = Nitrogen .

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