CBSE Class VII Science Solutions

Displaying 5 out of 15 questions & answers.
Q1.

Name any two animal fibres.

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Wool and Silk.

Q2.

Name the wool obtained from Cashmere goat.

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The fine, soft fibre obtained from the undercoat of the Cashmere sheep is called 'Cashmere'.

Q3.

Write the factors that determine the quality of wool.

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The quality of wool is judged by wool length, diameter, elasticity, strength and durability, effectiveness as an insulator and its ability to take up colouring dyes.

Q4.

What do you understand by the term shearing?

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Q5.

What is sericulture?

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Rearing of silkworms for the production of silk, is called the 'Sericulture'.