Question

what is relative humidity ??​

Answer 1

Answer:

the amount of water vapour present in air expressed as a percentage of the amount needed for saturation at the same temperature.

Explanation:

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Answer 2

An important and useful way of expressing the level of humidity in terms of relative humidity.It is defined as the ratio between the actual amount of water vapour present in the air at a given temperature and the maximum capacity of the air to hold moisture at that temperature.Relative humidity is always expressed in percentage.