At sea level, the partial pressure of oxygen is approximately:
A) 16%.
B) 21%.
C) 32%.
D) 78%.

Name: At sea level, the partial pressure of oxygen is approximately: A) 16%. B) 21%. C) 32%. D) 78%.
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Quizplus · Accepted Answer

The partial pressure of oxygen at sea level is approximately 21%, which corresponds to a partial pressure of around 160 mmHg. This is because the air we breathe is made up of approximately 78% nitrogen and 21% oxygen, with trace amounts of other gases.

At Sea Level, the Partial Pressure of Oxygen Is Approximately