Q. 134.4( 7 Votes )
How do the hair of certain animals help in keeping their bodies warm?
Animals have thick coat of hairs. These hairs help certain animals in keeping their bodies warm such as yak, sheep etc. Hairs of these animals trap a lot of air in them. Air is a poor conductor of heat i.e. it prevents the loss of heat from their bodies to cold surroundings. In this way hair of certain animals help in keeping their bodies warm.
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Write various steps for processing fibres into wool.NCERT - Exemplar Science
Various steps involved to obtain wool from fleece are given here.
(i) Picking out the burrs
(ii) Dyeing in various colours
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(a) _________ and _________ fibres are obtained from animals.
(b) Silk fibres come from _________ of silk _________.
(c) Wool yielding animals bear _________ on their body.
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