Environmental Science
During the afternoon the greatest temperature difference between the surface air and the air several meters above occurs on a:

Cloudy, windy afternoon
Clear, calm afternoon
Clear, windy afternoon
Cloudy, calm afternoon

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Environmental Science
Suppose it is a winter night and at about 11 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:

Increase as the air becomes moister
Increase as the air becomes drier
Decrease as the air becomes drier
Decrease as the air becomes moister

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