Question

Mention the role of dust particles in the troposphere.

Answer 1

Role of Dust Particles:

1. Dust particles in the atmosphere consist of sand, dust, smoke-soot, oceanic salt, ash, pollen, etc.
2. They contribute to air pollution, which causes haze or smog and can irritate eyes and the respiratory system.
3. Dust particles reflect and scatter short-wave solar radiation, which contributes to the red and orange colors observed at sunrise and sunset by acting like prisms.
4. They also serve as condensation nuclei, tiny particles around which water vapor condenses to form clouds and precipitation.