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Subject :NSO    Class : Class 5

Select the correct sequence of words to fill the blanks in the following sentences.

a - 1 fibres do not absorb sweat.
b - Wool is obtained from 2
c - Insects like 3 damage silk and woollen clothes.

            1                      2                      3
APolyester          Cow                Cockroach
BSilk                  Sheep               Butterfly
CWoollen           Plant                 Moth
DNylon              Sheep                Silver fish

Please sir I found this a very dicey question. Do silver fish really damage silk and woolen clothes?

Ans 1:

Class : Class 5
Option no. D is correct. This is because as nylon is a synthetic fibre , it doesn't absorb sweat and also sheep is the animal from whom wool is obtained, and yes silverfish do damage silk and woollen clothes.

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