Multiple choice

Which of the following acts as the hygroscopic nuclei around which the water vapour condenses to produce clouds?

  1. Atmospheric carbon di oxide

  2. Ozone gas

  3. Dust and salt particles

  4. Dust particles and carbon di oxide

  5. Salt particles in the ozone layer

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dust and salt particles act as hygroscopic nuclei around which water vapour condenses to produce clouds.