Final answer:
Water stored in an earthen pot becomes cool in summer due to the process of evaporation, similar to plant cooling in hot weather.
Explanation:
Water in an earthen pot (matka) becomes cool during summer due to the process of evaporation. The water stored in the porous clay pot evaporates slightly through the walls of the pot, taking away heat energy from the remaining water, cooling it down. This phenomenon is similar to how plants cool themselves through the loss of water vapor in hot weather.
Learn more about Cooling effect of water in an earthen pot (matka) during summer here:
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