Raghu took out a torn shirt. He pulled out few strands called ’X’ from his shirt. When he untwisted them, he found very thin strands called ‘Y’. Identify ‘X’ and ‘Y’.

X is yarn and Y is fibre.
Yarn is made by twisting or bonding fibers together to make a cohesive thread. Twisting the fibers into yarn is called spinning.

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X is string and Y is strand.
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