Multiple choice

Which of the following is favorable for the formation of radiation fog?

  1. High humidity

  2. Clear skies

  3. Light winds

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Radiation fog forms when the ground loses heat through radiation at night, cooling the air near the surface to its dew point. High humidity provides moisture, clear skies allow maximum radiational cooling, and light winds prevent mixing with warmer air from above - all are favorable conditions.

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