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Subject :NSO    Class : Class 7

Which of the following is an incorrect statement?

(a) Cotton yarn shrinks away from flame and burns and smells like burning paper.
(b) Silk has come under fire from animal right activists.
(c) Wool fibres have an outer layer scales that reduce the ability of dirt and dust to penetrate the fibre.
(d) A spinneret is used to make nylon but is not needed to make cotton or wool fibres.


Ans 1:

Class : Class 10
D

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