Which substance must be present in air for both frost and dew formation?
Answer and explanation
Correct answer: Water vapour
Both form from water vapour although their final forms differ. Exam tip: treat moisture as the basic condition.
Frequently asked questions
What is the correct answer to this question?
Water vapour
Why is this the correct answer?
Both form from water vapour although their final forms differ. Exam tip: treat moisture as the basic condition.
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.