Consider a midnight scenario in which a shallow layer of air near the ground has an air temperature of 7ºC and a dew point temperature of 2ºC. Which of the following statements describes the conditions at 6:00 a.m. if the air continues to cool at a rate of 0.8ºC per hour until the dew point is reached, and at a rate of 0.4ºC per hour thereafter?

A. The temperature will be 0ºC and only frost will be present.
B. The temperature will be 1ºC and no condensation will be present.
C. The temperature will be 0ºC with frost and frozen dew present.
D. The temperature will be 1ºC and only dew will be present.


Answer: D

Environmental & Atmospheric Sciences

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