Question

the wool fibres are straightened combed and rolled into yarn​

Answer 1

Explanation:

wool fibre wool fibre are Street combat and rolled into yarn is called silkworms

Answer 2

ANSWER:  

Raw wool undergoes several process before it is been spun into yarn.

EXPLANATION:

With the use of spinning machine, raw wool is obtained by means of shearing. After the shearing, classing of wool is been done where it is been segregated into broken and locks.

It undergoes several processes such as straightening and combing before it is made into yarn. Yarn differs from one another by means of its thickness and tendency to make people warm.