Question

what is relative humidity??

Answer 1

The amount of water vapour present in air expressed as a percentage of the amount needed for saturation at the same temperature is known as relative humidity.

Answer 2

                                                        Relative
                                                    ===========
                                                 ✪   HUMIDITY  ✪
                                                    ===========

✪ It is the rate of amount of water vapor present in air compared to the capacity of air to hold water.(i.e saturation)