Questions and Answers
Class 7, Chapter 3 - Fibre to Fabric | NCERT
1.
How many types of fibres one can find on sheep's body?
two
Match sheep breed with its quality.
2.
Lohi
good quality wool
3.
Rampur bushair
brown fleece
4.
Nali
carpet wool
5.
Bakharwal
For woollen shawls
6.
Marwari
Coarse wool
7.
Patanwadi
For hosiery
8.
Rearing silkworms for obtaining silk is called:
sericulture
9.
Silk is made of:
protein
10.
What is the name of a silkworm development stage when it is covered with cocoon?
pupa
11.
What is the most common silk moth?
mulberry silk moth
12.
Which country leads in world silk production?
China
13.
How long it takes for mulberry moth from hatching to spin a cocoon?
about 25 to 30 days
14.
How silk fibres are separated from cocoons?
with temperature