WHY DO WE WEAR WOOLEN CLOTHES IN WINTER ?

We wear woollen clothes in winter because air is a poor conductor of heat and woollen clothes do not allow the transfer of body heat to the environment and keep us warm.

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The wool is structured so there is air trapped inside. Air is a very good insulator. Therefore loss of heat through conduction (i.e. from particle to particle) decreases greatly.

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to keep themselves warm and cosy

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