Question

how does the water kept in earthen pot Matka became cool during summer​

Answer 1

hey mate!!!

Unlike metal containers earthen pot has pores on the container walls through which water particles evaporate. ... therefore water kept in earthen pot become cool during summer. Earthen pots have small pores through which the water seeps and as evaporation leads to cooling of the substance.

hope it helps!!!

Answer 2

An earthen pot is porous in nature. These tiny pores facilitate penetration of water and hence their evaporation from the pot surface. The process of evaporation requires energy which is contributed by water in the pot as a result of which water turns cooler.