Question

How can you show that air contains dust particles and water vapour?​

Answer 1

Answer:

When an cold water bottled is kept in a table from outside it becomes wet so it defines that air contains water vapour...

Explanation:

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Answer 2

In the morning, if we examine the beam of light entering our room, we will notice tiny particles floating in air. These are dust particles. Hence, it proves that air contains dust particles.