Q:

In which situation will the evaporation of sweat from the skin be ineffective as a heat loss method?

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In which situation will the evaporation of sweat from the skin be ineffective as a heat loss method?


  1. the air temperature is greater than human body temperature.
  2. the air temperature is less than human body temperature.
  3. the surrounding air is saturated with water vapor.
  4. the human body is immersed in the water of a swimming pool.

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C: Sweat will evaporate only if the surrounding air is not already saturated with water vapor. High humidity decreases the effectiveness of sweating as a heat loss mechanism. 

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