John was planning a trip to the Himalayas. While going for shopping, his uncle suggested him to buy woollen garments for the trip because wool is:
A
a cheap fibre
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B
wrinkle resistant
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C
a bad conductor of heat
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D
a natural fibre
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Solution
The correct option is C a bad conductor of heat Wool is a bad conductor of heat. It traps air between its fibres. This trapped air does not allow heat to pass from our body into the surrounding, thereby keeping us warm. Hence, we should wear woollen clothes in winter.