Why is atmospheric water vapour related to fog formation as well as rainfall?
Answer and explanation
Correct answer: Because tiny droplets can form near the surface at saturation
The governing concept is condensation at different heights. When moist air near the ground cools to its dew point, it can become saturated. Water vapour then condenses on microscopic particles into tiny suspended droplets, producing fog. If similar condensation occurs higher above the surface, clouds may form, and droplets or ice particles can grow enough to fall as precipitation. Fog is therefore not nitrogen, rock, or dry dust. Option A is correct.
Frequently asked questions
What is the correct answer to this question?
Because tiny droplets can form near the surface at saturation
Why is this the correct answer?
The governing concept is condensation at different heights. When moist air near the ground cools to its dew point, it can become saturated. Water vapour then condenses on microscopic particles into tiny suspended droplets, producing fog. If similar condensation occurs higher above the surface, clouds may form, and droplets or ice particles can grow enough to fall as precipitation. Fog is therefore not nitrogen, rock, or dry dust. Option A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
