Which atmospheric particles provide surfaces on which cloud droplets can form?
Answer and explanation
Correct answer: Dust and salt particles
Cloud droplets commonly form by condensation of water vapour on condensation nuclei. Tiny dust particles and sea-salt particles can act as these nuclei, providing surfaces on which water molecules gather and grow into droplets; therefore option B is correct. Oxygen and nitrogen are gases, and argon is an inert gas, so none of them normally provides the required particulate surface.
Frequently asked questions
What is the correct answer to this question?
Dust and salt particles
Why is this the correct answer?
Cloud droplets commonly form by condensation of water vapour on condensation nuclei. Tiny dust particles and sea-salt particles can act as these nuclei, providing surfaces on which water molecules gather and grow into droplets; therefore option B is correct. Oxygen and nitrogen are gases, and argon is an inert gas, so none of them normally provides the required particulate surface.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Recording of Transactions (I & II). Topic: special purpose books.
