Question

water kept in earthen pot becomes cool in summer give reason

Answer 1

Earthen pot has minute pores in it through which water escapes. It takes the heat energy from the water in the pot and evaporates cooling the water.

Answer 2

THE EARTHEN POTS IS POROUS WITH LOT OF PORES ON IT,THE WATER OOZES OUT THROUGH THESE PORES AND THE WATER GETS EVAPORATED AT THE SURFACE OF THE POT THEREBY CAUSING COOLING EFFECT .THIS MAKES THE POT COLD AND THE WATER INSIDE THE POT COOLS BY THIS PROCESS.