ScienceClass 7CBSE
Q
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.
A
Soln:
(a)SilkandWoolfibres are obtained from animals.
(b) Silk fibres come fromcocoonsof the silkmoth.
(c) Wool yielding animals bearhairon their body.
(d) Hair trap a lot ofair, which is a poorconductorof heat.