What may happen if temperature falls below freezing after dew has formed?
Answer and explanation
Correct answer: The dew may freeze to form frozen dew
Dew consists of liquid water droplets already deposited on a surface. If the temperature falls below 0°C after dew has formed, these droplets can freeze and become frozen dew. This differs from frost, which forms when water vapour directly deposits as ice crystals; here, liquid dew freezes afterward. Exam tip: liquid droplets first, followed by freezing, indicates frozen dew.
Frequently asked questions
What is the correct answer to this question?
The dew may freeze to form frozen dew
Why is this the correct answer?
Dew consists of liquid water droplets already deposited on a surface. If the temperature falls below 0°C after dew has formed, these droplets can freeze and become frozen dew. This differs from frost, which forms when water vapour directly deposits as ice crystals; here, liquid dew freezes afterward. Exam tip: liquid droplets first, followed by freezing, indicates frozen dew.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Water in the Atmosphere. Topic: Forms of condensation: dew, frost, fog, and mist.
