What is Humidity?And how do people feel if they're on humid enviroment?Can they feel the hotness?

Humidity is water vapor in the air. It is related to temperature but it does not have to be hot. When air is humid you sweat, even if it's cold air. If it is hot and humid, you feel crummy and wish you could get a breeze. Here in the Arizona desert the air is so still that sweat collects in a cloud around you and you think you are going to drown. You walk around in the shade just to feel the air move and to get a breath of dry air.