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Subject :NSO    Class : Class 7

The given figure shows steps involved in the process of wool yarn making. Identify steps a, b, c, d and e and select correct option regarding them:

A In many parts of the world, step 'a' is done once a year. It harms the sheep and is painful.
B Steps 'b and c' show the process of scouring, during which workers are at high risk of getting respiratory diseases.
C Step 'd' converts wool fleece into narrow untwisted fibres called slivers.
D Step 'e' depends on the length of the fibres. Long fibres are used for making tweeds and flannel whereas short fibres are used in making gabardines.

Ans 1:

Class : Class 7

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