dolphine87 dolphine87
  • 18-01-2021
  • Biology
contestada

What is the approximate percentage of oxygen in expired air?
A 0.04% B 4% C 16% D 21%

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danyellessamaroo
danyellessamaroo danyellessamaroo
  • 18-01-2021

Answer:

c: 16%

Explanation:

experied oxygen is also exhaled o2

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