Question

We can find tiny droplets of water on the outer surface of a steel glass containing cold water or ice. This shows that:

• A. steel contains air
• B. air contains water vapour
• C. cold water can seep through solids
• D. none of these

Answer 1

Answer: (B)

air contains water vapour

The water vapour molecules present in the atmosphere lose their energy and get condensed when they come in contact with the surface of a steel glass containing ice-cold water.

When they get condensed, they appear as tiny water droplets.

Hence, the correct answer is option $\text{B}$.