Multiple choice

Vapour is the gaseous form of

  1. air

  2. water

  3. solid

  4. All the above

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

Vapor refers to the gaseous phase of substances normally liquid at room temperature. Water vapor is invisible but forms clouds or fog when it condenses. Air itself is a mixture of gases, while solids have fixed shapes and volumes.