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 trap a lot of ______ , which is a poor ______ of heat.

AcademicChemistryNCERTClass 7

(a) Silk and Wool fibres are obtained from animals.

(b) Silk fibres come from cocoon of silk moths .

(c) Wool yielding animals bear hair on their body.

(d) Hair trap a lot of air , which is a poor conductor of heat.

raja
Updated on 10-Oct-2022 13:20:37

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