In which form do droplets remain deposited on a surface and not suspended in air?
Answer and explanation
Correct answer: Dew
Dew is the form of condensation in which liquid water droplets are deposited directly on a cool surface, such as grass, leaves, roofs, or vehicle windows. Because the droplets rest on that surface, they are not suspended in the air; therefore option A is correct. Fog and mist consist of very small water droplets or ice particles suspended near the ground, so they reduce visibility while remaining airborne. Smoke is not a normal form of condensation; it is an aerosol of solid or liquid particles produced by combustion or other processes. The useful distinction is location: dew is a surface deposit, whereas fog and mist are atmospheric suspensions. Formation of dew commonly occurs when a surface cools to the dew point and nearby water vapour condenses on it.
Frequently asked questions
What is the correct answer to this question?
Dew
Why is this the correct answer?
Dew is the form of condensation in which liquid water droplets are deposited directly on a cool surface, such as grass, leaves, roofs, or vehicle windows. Because the droplets rest on that surface, they are not suspended in the air; therefore option A is correct. Fog and mist consist of very small water droplets or ice particles suspended near the ground, so they reduce visibility while remaining airborne. Smoke is not a normal form of condensation; it is an aerosol of solid or liquid particles produced by combustion or other processes. The useful distinction is location: dew is a surface deposit, whereas fog and mist are atmospheric suspensions. Formation of dew commonly occurs when a surface cools to the dew point and nearby water vapour condenses on it.
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.
