What is the process called when water vapor changes directly to a solid, forming frost?

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Multiple Choice

What is the process called when water vapor changes directly to a solid, forming frost?

Explanation:
Deposition. Water vapor changes directly into a solid when cold air causes the vapor to lose enough energy to skip the liquid phase and crystallize as frost on surfaces. This is different from sublimation (solid to gas), condensation (gas to liquid), or evaporation (liquid to gas). Frost forms when surfaces are at or below freezing and humidity is high enough for water vapor to deposit as ice crystals.

Deposition. Water vapor changes directly into a solid when cold air causes the vapor to lose enough energy to skip the liquid phase and crystallize as frost on surfaces. This is different from sublimation (solid to gas), condensation (gas to liquid), or evaporation (liquid to gas). Frost forms when surfaces are at or below freezing and humidity is high enough for water vapor to deposit as ice crystals.

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