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Subject :NSO    Class : Class 7

Which of the following statements are incorrect?

(i) Fibres obtained from plants and animals are termed natural fibres.
(ii) Coir is a coarse fibre extracted from the cotton plant.
(iii) Plant fibres when burnt give smell of burning hair.
(iv) Wet woollen clothes dry faster than wet cotton clothes.

A(ii) and (iii) only
B(ii), (iii) and (iv) only
C(iii) and (iv) only
D(i), (ii), (iii) and (iv)

Wet wool does dry faster than wet cotton! The answer is A!

Ans 1:

Class : Class 7

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