SSC MTS EXAM

SSC

WORLD HISTORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A material made from the cocoon of a caterpillar
A
silk
B
cotton
C
polyester
D
canvas
Explanation: 

Detailed explanation-1: -Silk is a soft, smooth cloth that has been used by humans for thousands of years. It is made of fine threads woven by silk-moth caterpillars. These tiny creatures weave the threads into cocoons to protect themselves during metamorphosis. Human beings can harvest the cocoons and extract the threads to make silk fabric.

Detailed explanation-2: -Silk fibres are produced by silkworms when they spin themselves into a cocoon on their journey to becoming a silkmoth. These ultra-soft fibres are harvested from the cocoon in their raw state by being boiled in hot water (still containing the silkworms) and stirred until the cocoons unravel.

Detailed explanation-3: -The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).

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