Question

How does the water kept in an earthen pot become cool during summer?

Answer 1

In an earthen pot, water gets evaporated quickly through the pores. Cooling is caused by evaporation. Some heat energy is utilised during the process of evaporation. Since this energy is taken from the water itself, it leads to a lowering of temperature in the remaining amount of water

Answer 2

the water becomes cool because of the pores present on it