Previous year MCQs

General science UPPSC 2012 GS-1
Question

In an earthen pitcher, the water remains cold due to the process of

Answer & Solution

Answer: (Detailed Solution Below)

Option B: evaporation

Detailed Solution:

The correct answer is “evaporation”.
Evaporation is the process that keeps water cool in an earthen pitcher.

The pitcher is porous, allowing some of the water to seep through its walls. As this water evaporates into the air, it takes heat energy from the remaining water, causing it to cool.

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