Question

water stored in earthen pots become cool?

Answer 1

Earthen pots have small pores through which a little bit of water comes out and the heat from this water is absorbed which leads to cooling of water.. Hope it will help you

Answer 2

becauserhe porous structure of the pot is allow the water in contact with air through the outer surface of pot which works as a heat exchanger by surface evaporation of waterdue this the tep. of inner surface of pot get lowered , and thus water remains cool......:-)