(a) When wet clothes are spread on a
stand, the water evaporates and the surrounding air tends to get saturated thus
hampering the process of drying. On a windy day when breeze blows, the nearby
wet air is replaced by dry air which helps the process of evaporation further.
Thus, clothes dry quicker when there is a breeze.
(b) The explanation is the same as given
above. On a humid day, the air is already saturated with water vapours. This means
that the water that comes out of the pores of the body as sweat does not
vaporise. This will result in greater sweating on a humid day.
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