Fill in the blanks in the following statements.
A. and________ fibres are obtained from animals.
B. Silk fibres come from________ of silk_________ .
C. Wool yielding animals bear________ on their body.
D. Hair trap a lot of________ which is a poor_________ of heat.
Answer:A
Fill in the blanks in the following statements.
A. and________ fibres are obtained from animals. B. Silk fibres come from________ of silk_________ . C. Wool yielding animals bear________ on their body. D. Hair trap a lot of________ which is a poor_________ of heat.