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Q.

Is it true that wool traps air between its layers?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Wool is an animal fibre that is obtained from various animals like sheep, camels, goats, rabbits, etc. Humans have recognised the insulating abilities of sheep's wool for more than 10,000 years. The cellular and chemical structure of individual wool fibres makes this magic happen as wool fibres have natural kinks and bends; they trap air to keep your body warm.
Woollen clothes are thick and have spaces between the fabric that traps air and does not allow the heat to leave the body. Hence woollen clothes keep you warm.
 
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