Which of the Following Statements About the Isothermic Saturation Boundary

question 30

Multiple Choice

Which of the following statements about the isothermic saturation boundary is true?

• A) Exercise causes the isothermic saturation boundary to shift higher in the trachea.
• B) At 2 cm above the carina, inhaled gas reaches BTPS.
• C) Inhalation through the mouth shifts the isothermic saturation boundary downward.
• D) Below the isothermic saturation boundary, temperature and relative humidity are variables.

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