Multiple choice

Why do hair stand on their ends when woollen clothes are taken off?

  1. Woollen clothes get charged and thus, they attract hair.

  2. The hair get entangled in spaces between the knitting.

  3. Woollen clothes are made up of natural fibres and as hair are natural fibres as well, they are attracted to each other.

  4. Woollen clothes are good conductors of heat, which makes them soft and sticky and thus, hair get stuck to them.
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A Correct answer
Explanation

Woollen clothes get charged when they are taken off, thus attracting hair.

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