Question

Silk fibre is obtained from :

• A. fleece of sheep
• B. cotton ball
• C. cocoon
• D. shiny jute stalk

Answer 1

Answer: (C)

cocoon

$C$

Cocoon is a protective case of silk or similar fibrous material spun by the larvae of moths and certain other insects as a cover for the pupa. The cocoon is made of a thread of raw silk from $300$ to about $900m(1,000to3,000ft)$ long. The fibres are very fine and lustrous, about $10\mu m\left(0.0004in\right)$ in diameter.