Fill in the blanks in the following statements. a) ______ and _______ fibres are obtained from animals. b) Silk fibres come from ______ of silk ______ . c) Wool yielding animals bear _______ on their body. d) Hair traps a lot of _______, which is poor ________ of heat.
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Fill up for above statements are: a) Fill up is silk, wool. b) Fill up is cocoons, moth. c) Fill up is hair. d) Fill up is air, conductor.