Water kept in an earthen pitcher, during summer days becomes very cold due to
evaporation
Explanation for correct option
The water kept in an earthen pitcher, during summer days becomes very cold due to evaporation.
This is because the water kept in an earthen pitcher saps into the small pores in pot & evaporates from the pot and the heat that is required for the evaporation is taken from water inside the pot. Thus the water is cooled and stored inside.
Explanation for incorrect option
Condensation It is process of conversion of gas into liquid.
Evaporation Process where water changes into vapours.
Freezing Phase transition where liquid turns into a solid when its temperature is lowered below its freezing point.
Thus, water kept in an earthen pitcher, during summer days becomes very cold due to option (b) i.e evaporation.