Discussion
Assertion (A) : Water kept in earthen pots gets cooled in summer.
Reason (R) : Evaporation causes cooling.
Answer: A
Correct answer: Both A and R are true and R is the correct explanation of A.
An earthen pot is porous, so water seeps to the outside and evaporates there, taking its latent heat from the water left behind. That evaporative cooling is exactly why the pot keeps water cold. Both are true and R explains A.
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