Multiple choice

Humidity means

  1. amount of water vapour present in a unit volume of air

  2. amount of water vapour present in a unit volume of water

  3. amount of water vapour present in earth

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Humidity specifically measures the concentration of water vapor present in the air. It is not about water in liquid form or in earth's crust. Relative humidity and absolute humidity are both measures of atmospheric moisture content. Options B and C are incorrect because they refer to water vapor in other contexts, not air.

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