Mist and fog may form from similar droplets yet why are they reported separately in weather reports?
Answer and explanation
Correct answer: Because their effect on visibility is different
Mist and fog can both consist of tiny water droplets suspended in air, but meteorological reports distinguish them mainly by visibility. Fog causes a greater reduction in visibility; conventionally, visibility below 1 km is reported as fog. In mist, visibility is comparatively better. Option A is wrong because mist also contains water droplets, and option B is wrong because fog is not made only of ice particles. Exam tip: for fog–mist questions, use the visibility criterion first.
Frequently asked questions
What is the correct answer to this question?
Because their effect on visibility is different
Why is this the correct answer?
Mist and fog can both consist of tiny water droplets suspended in air, but meteorological reports distinguish them mainly by visibility. Fog causes a greater reduction in visibility; conventionally, visibility below 1 km is reported as fog. In mist, visibility is comparatively better. Option A is wrong because mist also contains water droplets, and option B is wrong because fog is not made only of ice particles. Exam tip: for fog–mist questions, use the visibility criterion first.
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.
