CBSE Class 9 Answered
How does the perspiration or sweating help keep our body cool on a hot day?
Asked by Topperlearning User | 06 May, 2014, 01:50: PM
Expert Answer
On a hot day, when our body temperature tends to rise too much, our sweat glands give out moisture (sweat) on our skin. When this sweat evaporates, it takes the latent heat of vaporisation from our body hence making our body cool.
Answered by | 06 May, 2014, 03:50: PM
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