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Question

Wetting of dried soil surface automatically during night without rain is

A
Night recovery
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B
Dew wetting
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C
Mist formation
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D
Ground frost
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Solution

The correct option is A Night recovery
During night, the dried soil surface becomes wet. This is due to the water droplets that forms a thin layer due to condensation. This is called as night recovery. As the soil surface cools at night by radiating its heat, moisture present in the atmosphere condenses. This results in the formation of water droplets on the soil. At night as the air cools to the dew point, condensation occurs and soil becomes wet without rain.
Thus, the correct answer is option A.

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